From d1bc6a40f54a536f75777217ee3f4ce366dd0459 Mon Sep 17 00:00:00 2001
From: Jon Ziebell <ziebelje@gmail.com>
Date: Fri, 22 Jan 2021 08:33:09 -0500
Subject: [PATCH] Fixing array_median to return 0 if passed an empty array

---
 api/index.php | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/api/index.php b/api/index.php
index 44a5c15..857d59e 100644
--- a/api/index.php
+++ b/api/index.php
@@ -42,6 +42,11 @@ $request->process($_REQUEST);
 // Useful function
 function array_median($array) {
   $count = count($array);
+
+  if($count === 0) {
+    return null;
+  }
+
   $middle = floor($count / 2);
   sort($array, SORT_NUMERIC);
   $median = $array[$middle]; // assume an odd # of items
@@ -54,9 +59,11 @@ function array_median($array) {
 
 // Useful function
 function array_mean($array) {
-  if (count($array) === 0) {
+  $count = count($array);
+
+  if($count === 0) {
     return null;
   }
 
-  return array_sum($array) / count($array);
+  return array_sum($array) / $count;
 }