3v4l.org

run code in 300+ PHP versions simultaneously
<?php function my_sum ($list){ $list_length = count($list); $sum = 0; for ($i = 0; $i < list_length; $i++){ print($i."<br />"); $sum = $sum + $list[$i]; return $sum; } } $list = array(5,2,3,9); $sum = my_sum($list); print("The sum of all array elements is $sum <br />"); ?>
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
Fatal error: Uncaught Error: Undefined constant "list_length" in /in/eFolT:5 Stack trace: #0 /in/eFolT(12): my_sum(Array) #1 {main} thrown in /in/eFolT on line 5
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33
Warning: Use of undefined constant list_length - assumed 'list_length' (this will throw an Error in a future version of PHP) in /in/eFolT on line 5 The sum of all array elements is <br />
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20
Notice: Use of undefined constant list_length - assumed 'list_length' in /in/eFolT on line 5 The sum of all array elements is <br />
preferences:
217.55 ms | 404 KiB | 316 Q