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			880 lines
		
	
	
		
			28 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			880 lines
		
	
	
		
			28 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
| <?php
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| 
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| class parseCSV
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| {
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|     /*
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| 
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|     Class: parseCSV v0.3.2
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|     http://code.google.com/p/parsecsv-for-php/
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| 
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| 
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|     Fully conforms to the specifications lined out on wikipedia:
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|      - http://en.wikipedia.org/wiki/Comma-separated_values
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| 
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|     Based on the concept of Ming Hong Ng's CsvFileParser class:
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|      - http://minghong.blogspot.com/2006/07/csv-parser-for-php.html
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| 
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| 
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| 
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|     Copyright (c) 2007 Jim Myhrberg (jim@zydev.info).
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| 
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|     Permission is hereby granted, free of charge, to any person obtaining a copy
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|     of this software and associated documentation files (the "Software"), to deal
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|     in the Software without restriction, including without limitation the rights
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|     to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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|     copies of the Software, and to permit persons to whom the Software is
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|     furnished to do so, subject to the following conditions:
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| 
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|     The above copyright notice and this permission notice shall be included in
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|     all copies or substantial portions of the Software.
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| 
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|     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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|     IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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|     FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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|     AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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|     LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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|     OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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|     THE SOFTWARE.
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| 
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| 
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| 
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|     Code Examples
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|     ----------------
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|     # general usage
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|     $csv = new parseCSV('data.csv');
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|     print_r($csv->data);
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|     ----------------
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|     # tab delimited, and encoding conversion
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|     $csv = new parseCSV();
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|     $csv->encoding('UTF-16', 'UTF-8');
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|     $csv->delimiter = "\t";
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|     $csv->parse('data.tsv');
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|     print_r($csv->data);
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|     ----------------
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|     # auto-detect delimiter character
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|     $csv = new parseCSV();
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|     $csv->auto('data.csv');
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|     print_r($csv->data);
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|     ----------------
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|     # modify data in a csv file
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|     $csv = new parseCSV();
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|     $csv->sort_by = 'id';
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|     $csv->parse('data.csv');
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|     # "4" is the value of the "id" column of the CSV row
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|     $csv->data[4] = array('firstname' => 'John', 'lastname' => 'Doe', 'email' => 'john@doe.com');
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|     $csv->save();
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|     ----------------
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|     # add row/entry to end of CSV file
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|     #  - only recommended when you know the extact sctructure of the file
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|     $csv = new parseCSV();
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|     $csv->save('data.csv', array('1986', 'Home', 'Nowhere', ''), true);
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|     ----------------
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|     # convert 2D array to csv data and send headers
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|     # to browser to treat output as a file and download it
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|     $csv = new parseCSV();
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|     $csv->output (true, 'movies.csv', $array);
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|     ----------------
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| 
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| 
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| */
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| 
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|     /**
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|      * Configuration
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|      * - set these options with $object->var_name = 'value';.
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|      */
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| 
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|     // use first line/entry as field names
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|     public $heading = true;
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| 
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|     // override field names
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|     public $fields = [];
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| 
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|     // sort entries by this field
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|     public $sort_by = null;
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|     public $sort_reverse = false;
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| 
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|     // delimiter (comma) and enclosure (double quote)
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|     public $delimiter = ',';
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|     public $enclosure = '"';
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| 
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|     // basic SQL-like conditions for row matching
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|     public $conditions = null;
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| 
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|     // number of rows to ignore from beginning of data
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|     public $offset = null;
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| 
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|     // limits the number of returned rows to specified amount
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|     public $limit = null;
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| 
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|     // number of rows to analyze when attempting to auto-detect delimiter
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|     public $auto_depth = 15;
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| 
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|     // characters to ignore when attempting to auto-detect delimiter
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|     public $auto_non_chars = "a-zA-Z0-9\n\r";
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| 
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|     // preferred delimiter characters, only used when all filtering method
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|     // returns multiple possible delimiters (happens very rarely)
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|     public $auto_preferred = ",;\t.:|";
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| 
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|     // character encoding options
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|     public $convert_encoding = false;
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|     public $input_encoding = 'ISO-8859-1';
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|     public $output_encoding = 'ISO-8859-1';
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| 
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|     // used by unparse(), save(), and output() functions
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|     public $linefeed = "\r\n";
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| 
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|     // only used by output() function
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|     public $output_delimiter = ',';
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|     public $output_filename = 'data.csv';
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| 
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|     /**
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|      * Internal variables.
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|      */
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| 
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|     // current file
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|     public $file;
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| 
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|     // loaded file contents
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|     public $file_data;
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| 
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|     // array of field values in data parsed
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|     public $titles = [];
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| 
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|     // two dimentional array of CSV data
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|     public $data = [];
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| 
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|     /**
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|      * Constructor.
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|      *
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|      * @param   input   CSV file or string
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|      * @param null|mixed $input
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|      * @param null|mixed $offset
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|      * @param null|mixed $limit
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|      * @param null|mixed $conditions
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|      *
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|      * @return nothing
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|      */
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|     public function __construct($input = null, $offset = null, $limit = null, $conditions = null)
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|     {
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|         if ($offset !== null) {
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|             $this->offset = $offset;
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|         }
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|         if ($limit !== null) {
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|             $this->limit = $limit;
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|         }
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|         if (count($conditions) > 0) {
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|             $this->conditions = $conditions;
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|         }
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|         if (! empty($input)) {
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|             $this->parse($input);
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|         }
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|     }
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| 
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|     // ==============================================
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|     // ----- [ Main Functions ] ---------------------
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|     // ==============================================
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| 
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|     /**
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|      * Parse CSV file or string.
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|      *
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|      * @param   input   CSV file or string
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|      * @param null|mixed $input
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|      * @param null|mixed $offset
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|      * @param null|mixed $limit
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|      * @param null|mixed $conditions
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|      *
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|      * @return nothing
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|      */
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|     public function parse($input = null, $offset = null, $limit = null, $conditions = null)
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|     {
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|         if (! empty($input)) {
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|             if ($offset !== null) {
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|                 $this->offset = $offset;
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|             }
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|             if ($limit !== null) {
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|                 $this->limit = $limit;
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|             }
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|             if (count($conditions) > 0) {
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|                 $this->conditions = $conditions;
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|             }
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|             if (is_readable($input)) {
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|                 $this->data = $this->parse_file($input);
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|             } else {
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|                 $this->file_data = &$input;
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|                 $this->data = $this->parse_string();
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|             }
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|             if ($this->data === false) {
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|                 return false;
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|             }
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|         }
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| 
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|         return true;
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|     }
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| 
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|     /**
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|      * Save changes, or new file and/or data.
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|      *
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|      * @param   file     file to save to
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|      * @param   data     2D array with data
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|      * @param   append   append current data to end of target CSV if exists
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|      * @param   fields   field names
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|      * @param null|mixed $file
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|      * @param mixed      $data
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|      * @param mixed      $append
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|      * @param mixed      $fields
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|      *
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|      * @return true or false
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|      */
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|     public function save($file = null, $data = [], $append = false, $fields = [])
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|     {
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|         if (empty($file)) {
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|             $file = &$this->file;
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|         }
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|         $mode = ($append) ? 'at' : 'wt';
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|         $is_php = (preg_match('/\.php$/i', $file)) ? true : false;
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| 
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|         return $this->_wfile($file, $this->unparse($data, $fields, $append, $is_php), $mode);
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|     }
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| 
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|     /**
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|      * Generate CSV based string for output.
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|      *
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|      * @param   output      if true, prints headers and strings to browser
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|      * @param   filename    filename sent to browser in headers if output is true
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|      * @param   data        2D array with data
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|      * @param   fields      field names
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|      * @param   delimiter   delimiter used to separate data
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|      * @param mixed      $output
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|      * @param null|mixed $filename
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|      * @param mixed      $data
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|      * @param mixed      $fields
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|      * @param null|mixed $delimiter
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|      *
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|      * @return CSV data using delimiter of choice, or default
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|      */
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|     public function output($output = true, $filename = null, $data = [], $fields = [], $delimiter = null)
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|     {
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|         if (empty($filename)) {
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|             $filename = $this->output_filename;
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|         }
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|         if ($delimiter === null) {
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|             $delimiter = $this->output_delimiter;
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|         }
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|         $data = $this->unparse($data, $fields, null, null, $delimiter);
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|         if ($output) {
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|             header('Content-type: application/csv');
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|             header('Content-Disposition: inline; filename="'.$filename.'"');
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|             echo $data;
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|         }
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| 
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|         return $data;
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|     }
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| 
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|     /**
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|      * Convert character encoding.
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|      *
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|      * @param   input    input character encoding, uses default if left blank
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|      * @param   output   output character encoding, uses default if left blank
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|      * @param null|mixed $input
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|      * @param null|mixed $output
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|      *
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|      * @return nothing
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|      */
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|     public function encoding($input = null, $output = null)
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|     {
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|         $this->convert_encoding = true;
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|         if ($input !== null) {
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|             $this->input_encoding = $input;
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|         }
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|         if ($output !== null) {
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|             $this->output_encoding = $output;
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|         }
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|     }
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| 
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|     /**
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|      * Auto-Detect Delimiter: Find delimiter by analyzing a specific number of
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|      * rows to determine most probable delimiter character.
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|      *
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|      * @param   file           local CSV file
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|      * @param   parse          true/false parse file directly
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|      * @param   search_depth   number of rows to analyze
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|      * @param   preferred      preferred delimiter characters
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|      * @param   enclosure      enclosure character, default is double quote (").
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|      * @param null|mixed $file
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|      * @param mixed      $parse
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|      * @param null|mixed $search_depth
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|      * @param null|mixed $preferred
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|      * @param null|mixed $enclosure
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|      *
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|      * @return delimiter character
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|      */
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|     public function auto($file = null, $parse = true, $search_depth = null, $preferred = null, $enclosure = null)
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|     {
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|         if ($file === null) {
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|             $file = $this->file;
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|         }
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|         if (empty($search_depth)) {
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|             $search_depth = $this->auto_depth;
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|         }
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|         if ($enclosure === null) {
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|             $enclosure = $this->enclosure;
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|         }
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| 
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|         if ($preferred === null) {
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|             $preferred = $this->auto_preferred;
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|         }
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| 
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|         if (empty($this->file_data)) {
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|             if ($this->_check_data($file)) {
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|                 $data = &$this->file_data;
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|             } else {
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|                 return false;
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|             }
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|         } else {
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|             $data = &$this->file_data;
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|         }
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| 
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|         $chars = [];
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|         $strlen = strlen($data);
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|         $enclosed = false;
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|         $n = 1;
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|         $to_end = true;
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| 
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|         // walk specific depth finding posssible delimiter characters
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|         for ($i = 0; $i < $strlen; $i++) {
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|             $ch = $data{$i};
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|             $nch = (isset($data{$i + 1})) ? $data{$i + 1} : false;
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|             $pch = (isset($data{$i - 1})) ? $data{$i - 1} : false;
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| 
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|             // open and closing quotes
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|             if ($ch == $enclosure && (! $enclosed || $nch != $enclosure)) {
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|                 $enclosed = ($enclosed) ? false : true;
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| 
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|             // inline quotes
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|             } elseif ($ch == $enclosure && $enclosed) {
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|                 $i++;
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| 
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|             // end of row
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|             } elseif (($ch == "\n" && $pch != "\r" || $ch == "\r") && ! $enclosed) {
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|                 if ($n >= $search_depth) {
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|                     $strlen = 0;
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|                     $to_end = false;
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|                 } else {
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|                     $n++;
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|                 }
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| 
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|             // count character
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|             } elseif (! $enclosed) {
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|                 if (! preg_match('/['.preg_quote($this->auto_non_chars, '/').']/i', $ch)) {
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|                     if (! isset($chars[$ch][$n])) {
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|                         $chars[$ch][$n] = 1;
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|                     } else {
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|                         $chars[$ch][$n]++;
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|                     }
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|                 }
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|             }
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|         }
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| 
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|         // filtering
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|         $depth = ($to_end) ? $n - 1 : $n;
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|         $filtered = [];
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|         foreach ($chars as $char => $value) {
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|             if ($match = $this->_check_count($char, $value, $depth, $preferred)) {
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|                 $filtered[$match] = $char;
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|             }
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|         }
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| 
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|         // capture most probable delimiter
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|         ksort($filtered);
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|         $delimiter = reset($filtered);
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|         $this->delimiter = $delimiter;
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| 
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|         // parse data
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|         if ($parse) {
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|             $this->data = $this->parse_string();
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|         }
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| 
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|         return $delimiter;
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|     }
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| 
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|     // ==============================================
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|     // ----- [ Core Functions ] ---------------------
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|     // ==============================================
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| 
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|     /**
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|      * Read file to string and call parse_string().
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|      *
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|      * @param   file   local CSV file
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|      * @param null|mixed $file
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|      *
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|      * @return 2D array with CSV data, or false on failure
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|      */
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|     public function parse_file($file = null)
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|     {
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|         if ($file === null) {
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|             $file = $this->file;
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|         }
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|         if (empty($this->file_data)) {
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|             $this->load_data($file);
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|         }
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| 
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|         return (! empty($this->file_data)) ? $this->parse_string() : false;
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|     }
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| 
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|     /**
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|      * Parse CSV strings to arrays.
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|      *
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|      * @param   data   CSV string
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|      * @param null|mixed $data
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|      *
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|      * @return 2D array with CSV data, or false on failure
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|      */
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|     public function parse_string($data = null)
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|     {
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|         if (empty($data)) {
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|             if ($this->_check_data()) {
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|                 $data = &$this->file_data;
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|             } else {
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|                 return false;
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|             }
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|         }
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| 
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|         $rows = [];
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|         $row = [];
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|         $row_count = 0;
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|         $current = '';
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|         $head = (! empty($this->fields)) ? $this->fields : [];
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|         $col = 0;
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|         $enclosed = false;
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|         $was_enclosed = false;
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|         $strlen = strlen($data);
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| 
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|         // walk through each character
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|         for ($i = 0; $i < $strlen; $i++) {
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|             $ch = $data{$i};
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|             $nch = (isset($data{$i + 1})) ? $data{$i + 1} : false;
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|             $pch = (isset($data{$i - 1})) ? $data{$i - 1} : false;
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| 
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|             // open and closing quotes
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|             if ($ch == $this->enclosure && (! $enclosed || $nch != $this->enclosure)) {
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|                 $enclosed = ($enclosed) ? false : true;
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|                 if ($enclosed) {
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|                     $was_enclosed = true;
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|                 }
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| 
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|             // inline quotes
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|             } elseif ($ch == $this->enclosure && $enclosed) {
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|                 $current .= $ch;
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|                 $i++;
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| 
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|             // end of field/row
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|             } elseif (($ch == $this->delimiter || ($ch == "\n" && $pch != "\r") || $ch == "\r") && ! $enclosed) {
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|                 if (! $was_enclosed) {
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|                     $current = trim($current);
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|                 }
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|                 $key = (! empty($head[$col])) ? $head[$col] : $col;
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|                 $row[$key] = $current;
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|                 $current = '';
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|                 $col++;
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| 
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|                 // end of row
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|                 if ($ch == "\n" || $ch == "\r") {
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|                     if ($this->_validate_offset($row_count) && $this->_validate_row_conditions($row, $this->conditions)) {
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|                         if ($this->heading && empty($head)) {
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|                             $head = $row;
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|                         } elseif (empty($this->fields) || (! empty($this->fields) && (($this->heading && $row_count > 0) || ! $this->heading))) {
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|                             if (! empty($this->sort_by) && ! empty($row[$this->sort_by])) {
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|                                 if (isset($rows[$row[$this->sort_by]])) {
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|                                     $rows[$row[$this->sort_by].'_0'] = &$rows[$row[$this->sort_by]];
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|                                     unset($rows[$row[$this->sort_by]]);
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|                                     for ($sn = 1; isset($rows[$row[$this->sort_by].'_'.$sn]); $sn++) {
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|                                     }
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|                                     $rows[$row[$this->sort_by].'_'.$sn] = $row;
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|                                 } else {
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|                                     $rows[$row[$this->sort_by]] = $row;
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|                                 }
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|                             } else {
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|                                 $rows[] = $row;
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|                             }
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|                         }
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|                     }
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|                     $row = [];
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|                     $col = 0;
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|                     $row_count++;
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|                     if ($this->sort_by === null && $this->limit !== null && count($rows) == $this->limit) {
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|                         $i = $strlen;
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|                     }
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|                 }
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| 
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|             // append character to current field
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|             } else {
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|                 $current .= $ch;
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|             }
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|         }
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|         $this->titles = $head;
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|         if (! empty($this->sort_by)) {
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|             ($this->sort_reverse) ? krsort($rows) : ksort($rows);
 | |
|             if ($this->offset !== null || $this->limit !== null) {
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|                 $rows = array_slice($rows, ($this->offset === null ? 0 : $this->offset), $this->limit, true);
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|             }
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|         }
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| 
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|         return $rows;
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|     }
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| 
 | |
|     /**
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|      * Create CSV data from array.
 | |
|      *
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|      * @param   data        2D array with data
 | |
|      * @param   fields      field names
 | |
|      * @param   append      if true, field names will not be output
 | |
|      * @param   is_php      if a php die() call should be put on the first
 | |
|      *                      line of the file, this is later ignored when read.
 | |
|      * @param   delimiter   field delimiter to use
 | |
|      * @param mixed      $data
 | |
|      * @param mixed      $fields
 | |
|      * @param mixed      $append
 | |
|      * @param mixed      $is_php
 | |
|      * @param null|mixed $delimiter
 | |
|      *
 | |
|      * @return CSV data (text string)
 | |
|      */
 | |
|     public function unparse($data = [], $fields = [], $append = false, $is_php = false, $delimiter = null)
 | |
|     {
 | |
|         if (! is_array($data) || empty($data)) {
 | |
|             $data = &$this->data;
 | |
|         }
 | |
|         if (! is_array($fields) || empty($fields)) {
 | |
|             $fields = &$this->titles;
 | |
|         }
 | |
|         if ($delimiter === null) {
 | |
|             $delimiter = $this->delimiter;
 | |
|         }
 | |
| 
 | |
|         $string = ($is_php) ? "<?php header('Status: 403'); die(' '); ?>".$this->linefeed : '';
 | |
|         $entry = [];
 | |
| 
 | |
|         // create heading
 | |
|         if ($this->heading && ! $append) {
 | |
|             foreach ($fields as $key => $value) {
 | |
|                 $entry[] = $this->_enclose_value($value);
 | |
|             }
 | |
|             $string .= implode($delimiter, $entry).$this->linefeed;
 | |
|             $entry = [];
 | |
|         }
 | |
| 
 | |
|         // create data
 | |
|         foreach ($data as $key => $row) {
 | |
|             foreach ($row as $field => $value) {
 | |
|                 $entry[] = $this->_enclose_value($value);
 | |
|             }
 | |
|             $string .= implode($delimiter, $entry).$this->linefeed;
 | |
|             $entry = [];
 | |
|         }
 | |
| 
 | |
|         return $string;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Load local file or string.
 | |
|      *
 | |
|      * @param   input   local CSV file
 | |
|      * @param null|mixed $input
 | |
|      *
 | |
|      * @return true or false
 | |
|      */
 | |
|     public function load_data($input = null)
 | |
|     {
 | |
|         $data = null;
 | |
|         $file = null;
 | |
|         if ($input === null) {
 | |
|             $file = $this->file;
 | |
|         } elseif (file_exists($input)) {
 | |
|             $file = $input;
 | |
|         } else {
 | |
|             $data = $input;
 | |
|         }
 | |
|         if (! empty($data) || $data = $this->_rfile($file)) {
 | |
|             if ($this->file != $file) {
 | |
|                 $this->file = $file;
 | |
|             }
 | |
|             if (preg_match('/\.php$/i', $file) && preg_match('/<\?.*?\?>(.*)/ims', $data, $strip)) {
 | |
|                 $data = ltrim($strip[1]);
 | |
|             }
 | |
|             if ($this->convert_encoding) {
 | |
|                 $data = iconv($this->input_encoding, $this->output_encoding, $data);
 | |
|             }
 | |
|             if (substr($data, -1) != "\n") {
 | |
|                 $data .= "\n";
 | |
|             }
 | |
|             $this->file_data = &$data;
 | |
| 
 | |
|             return true;
 | |
|         }
 | |
| 
 | |
|         return false;
 | |
|     }
 | |
| 
 | |
|     // ==============================================
 | |
|     // ----- [ Internal Functions ] -----------------
 | |
|     // ==============================================
 | |
| 
 | |
|     /**
 | |
|      * Validate a row against specified conditions.
 | |
|      *
 | |
|      * @param   row          array with values from a row
 | |
|      * @param   conditions   specified conditions that the row must match
 | |
|      * @param mixed      $row
 | |
|      * @param null|mixed $conditions
 | |
|      *
 | |
|      * @return true of false
 | |
|      */
 | |
|     public function _validate_row_conditions($row = [], $conditions = null)
 | |
|     {
 | |
|         if (! empty($row)) {
 | |
|             if (! empty($conditions)) {
 | |
|                 $conditions = (strpos($conditions, ' OR ') !== false) ? explode(' OR ', $conditions) : [$conditions];
 | |
|                 $or = '';
 | |
|                 foreach ($conditions as $key => $value) {
 | |
|                     if (strpos($value, ' AND ') !== false) {
 | |
|                         $value = explode(' AND ', $value);
 | |
|                         $and = '';
 | |
|                         foreach ($value as $k => $v) {
 | |
|                             $and .= $this->_validate_row_condition($row, $v);
 | |
|                         }
 | |
|                         $or .= (strpos($and, '0') !== false) ? '0' : '1';
 | |
|                     } else {
 | |
|                         $or .= $this->_validate_row_condition($row, $value);
 | |
|                     }
 | |
|                 }
 | |
| 
 | |
|                 return (strpos($or, '1') !== false) ? true : false;
 | |
|             }
 | |
| 
 | |
|             return true;
 | |
|         }
 | |
| 
 | |
|         return false;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Validate a row against a single condition.
 | |
|      *
 | |
|      * @param   row          array with values from a row
 | |
|      * @param   condition   specified condition that the row must match
 | |
|      * @param mixed $row
 | |
|      * @param mixed $condition
 | |
|      *
 | |
|      * @return true of false
 | |
|      */
 | |
|     public function _validate_row_condition($row, $condition)
 | |
|     {
 | |
|         $operators = [
 | |
|             '=', 'equals', 'is',
 | |
|             '!=', 'is not',
 | |
|             '<', 'is less than',
 | |
|             '>', 'is greater than',
 | |
|             '<=', 'is less than or equals',
 | |
|             '>=', 'is greater than or equals',
 | |
|             'contains',
 | |
|             'does not contain',
 | |
|         ];
 | |
|         $operators_regex = [];
 | |
|         foreach ($operators as $value) {
 | |
|             $operators_regex[] = preg_quote($value, '/');
 | |
|         }
 | |
|         $operators_regex = implode('|', $operators_regex);
 | |
|         if (preg_match('/^(.+) ('.$operators_regex.') (.+)$/i', trim($condition), $capture)) {
 | |
|             $field = $capture[1];
 | |
|             $op = $capture[2];
 | |
|             $value = $capture[3];
 | |
|             if (preg_match('/^([\'\"]{1})(.*)([\'\"]{1})$/i', $value, $capture)) {
 | |
|                 if ($capture[1] == $capture[3]) {
 | |
|                     $value = $capture[2];
 | |
|                     $value = str_replace('\\n', "\n", $value);
 | |
|                     $value = str_replace('\\r', "\r", $value);
 | |
|                     $value = str_replace('\\t', "\t", $value);
 | |
|                     $value = stripslashes($value);
 | |
|                 }
 | |
|             }
 | |
|             if (array_key_exists($field, $row)) {
 | |
|                 if (($op == '=' || $op == 'equals' || $op == 'is') && $row[$field] == $value) {
 | |
|                     return '1';
 | |
|                 } elseif (($op == '!=' || $op == 'is not') && $row[$field] != $value) {
 | |
|                     return '1';
 | |
|                 } elseif (($op == '<' || $op == 'is less than') && $row[$field] < $value) {
 | |
|                     return '1';
 | |
|                 } elseif (($op == '>' || $op == 'is greater than') && $row[$field] > $value) {
 | |
|                     return '1';
 | |
|                 } elseif (($op == '<=' || $op == 'is less than or equals') && $row[$field] <= $value) {
 | |
|                     return '1';
 | |
|                 } elseif (($op == '>=' || $op == 'is greater than or equals') && $row[$field] >= $value) {
 | |
|                     return '1';
 | |
|                 } elseif ($op == 'contains' && preg_match('/'.preg_quote($value, '/').'/i', $row[$field])) {
 | |
|                     return '1';
 | |
|                 } elseif ($op == 'does not contain' && ! preg_match('/'.preg_quote($value, '/').'/i', $row[$field])) {
 | |
|                     return '1';
 | |
|                 } else {
 | |
|                     return '0';
 | |
|                 }
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         return '1';
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Validates if the row is within the offset or not if sorting is disabled.
 | |
|      *
 | |
|      * @param   current_row   the current row number being processed
 | |
|      * @param mixed $current_row
 | |
|      *
 | |
|      * @return true of false
 | |
|      */
 | |
|     public function _validate_offset($current_row)
 | |
|     {
 | |
|         if ($this->sort_by === null && $this->offset !== null && $current_row < $this->offset) {
 | |
|             return false;
 | |
|         }
 | |
| 
 | |
|         return true;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Enclose values if needed
 | |
|      *  - only used by unparse().
 | |
|      *
 | |
|      * @param   value   string to process
 | |
|      * @param null|mixed $value
 | |
|      *
 | |
|      * @return Processed value
 | |
|      */
 | |
|     public function _enclose_value($value = null)
 | |
|     {
 | |
|         if ($value !== null && $value != '') {
 | |
|             $delimiter = preg_quote($this->delimiter, '/');
 | |
|             $enclosure = preg_quote($this->enclosure, '/');
 | |
|             if (preg_match('/'.$delimiter.'|'.$enclosure."|\n|\r/i", $value) || ($value{0} == ' ' || substr($value, -1) == ' ')) {
 | |
|                 $value = str_replace($this->enclosure, $this->enclosure.$this->enclosure, $value);
 | |
|                 $value = $this->enclosure.$value.$this->enclosure;
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         return $value;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Check file data.
 | |
|      *
 | |
|      * @param   file   local filename
 | |
|      * @param null|mixed $file
 | |
|      *
 | |
|      * @return true or false
 | |
|      */
 | |
|     public function _check_data($file = null)
 | |
|     {
 | |
|         if (empty($this->file_data)) {
 | |
|             if ($file === null) {
 | |
|                 $file = $this->file;
 | |
|             }
 | |
| 
 | |
|             return $this->load_data($file);
 | |
|         }
 | |
| 
 | |
|         return true;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Check if passed info might be delimiter
 | |
|      *  - only used by find_delimiter().
 | |
|      *
 | |
|      * @param mixed $char
 | |
|      * @param mixed $array
 | |
|      * @param mixed $depth
 | |
|      * @param mixed $preferred
 | |
|      *
 | |
|      * @return special string used for delimiter selection, or false
 | |
|      */
 | |
|     public function _check_count($char, $array, $depth, $preferred)
 | |
|     {
 | |
|         if ($depth == count($array)) {
 | |
|             $first = null;
 | |
|             $equal = null;
 | |
|             $almost = false;
 | |
|             foreach ($array as $key => $value) {
 | |
|                 if ($first == null) {
 | |
|                     $first = $value;
 | |
|                 } elseif ($value == $first && $equal !== false) {
 | |
|                     $equal = true;
 | |
|                 } elseif ($value == $first + 1 && $equal !== false) {
 | |
|                     $equal = true;
 | |
|                     $almost = true;
 | |
|                 } else {
 | |
|                     $equal = false;
 | |
|                 }
 | |
|             }
 | |
|             if ($equal) {
 | |
|                 $match = ($almost) ? 2 : 1;
 | |
|                 $pref = strpos($preferred, $char);
 | |
|                 $pref = ($pref !== false) ? str_pad($pref, 3, '0', STR_PAD_LEFT) : '999';
 | |
| 
 | |
|                 return $pref.$match.'.'.(99999 - str_pad($first, 5, '0', STR_PAD_LEFT));
 | |
|             } else {
 | |
|                 return false;
 | |
|             }
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Read local file.
 | |
|      *
 | |
|      * @param   file   local filename
 | |
|      * @param null|mixed $file
 | |
|      *
 | |
|      * @return Data from file, or false on failure
 | |
|      */
 | |
|     public function _rfile($file = null)
 | |
|     {
 | |
|         if (is_readable($file)) {
 | |
|             if (! ($fh = fopen($file, 'r'))) {
 | |
|                 return false;
 | |
|             }
 | |
|             $data = fread($fh, filesize($file));
 | |
|             fclose($fh);
 | |
| 
 | |
|             return $data;
 | |
|         }
 | |
| 
 | |
|         return false;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Write to local file.
 | |
|      *
 | |
|      * @param   file     local filename
 | |
|      * @param   string   data to write to file
 | |
|      * @param   mode     fopen() mode
 | |
|      * @param   lock     flock() mode
 | |
|      * @param mixed $file
 | |
|      * @param mixed $string
 | |
|      * @param mixed $mode
 | |
|      * @param mixed $lock
 | |
|      *
 | |
|      * @return true or false
 | |
|      */
 | |
|     public function _wfile($file, $string = '', $mode = 'wb', $lock = 2)
 | |
|     {
 | |
|         if ($fp = fopen($file, $mode)) {
 | |
|             flock($fp, $lock);
 | |
|             $re = fwrite($fp, $string);
 | |
|             $re2 = fclose($fp);
 | |
|             if ($re != false && $re2 != false) {
 | |
|                 return true;
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         return false;
 | |
|     }
 | |
| }
 |