3v4l.org

run code in 300+ PHP versions simultaneously
<?php $ar1 = array(); for($i = 0; $i < 1000; $i++){ $ar1[] = 'a' . $i; } #unset($ar1['775']); #unset($ar1['175']); #unset($ar1['75']); remo($ar1, 775); remo($ar1, 175); remo($ar1, 75); echo count($ar1); function remo(&$arr, $key_remove){ $a = array(); foreach($arr as $key => $value){ if($key === $key_remove) continue; $a[$key] = $value; } $arr = a; }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught Error: Undefined constant "a" in /in/vetlG:21 Stack trace: #0 /in/vetlG(10): remo(Array, 775) #1 {main} thrown in /in/vetlG on line 21
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: Use of undefined constant a - assumed 'a' (this will throw an Error in a future version of PHP) in /in/vetlG on line 21 Warning: Invalid argument supplied for foreach() in /in/vetlG on line 17 Warning: Use of undefined constant a - assumed 'a' (this will throw an Error in a future version of PHP) in /in/vetlG on line 21 Warning: Invalid argument supplied for foreach() in /in/vetlG on line 17 Warning: Use of undefined constant a - assumed 'a' (this will throw an Error in a future version of PHP) in /in/vetlG on line 21 Warning: count(): Parameter must be an array or an object that implements Countable in /in/vetlG on line 13 1
Output for 4.3.0 - 4.3.10, 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, 5.5.0 - 5.5.36, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25
Notice: Use of undefined constant a - assumed 'a' in /in/vetlG on line 21 Warning: Invalid argument supplied for foreach() in /in/vetlG on line 17 Notice: Use of undefined constant a - assumed 'a' in /in/vetlG on line 21 Warning: Invalid argument supplied for foreach() in /in/vetlG on line 17 Notice: Use of undefined constant a - assumed 'a' in /in/vetlG on line 21 1
Output for 4.3.11
Notice: Use of undefined constant a - assumed 'a' in /in/vetlG on line 21 Notice: Use of undefined constant a - assumed 'a' in /in/vetlG on line 21 Notice: Use of undefined constant a - assumed 'a' in /in/vetlG on line 21 1
preferences:
288.86 ms | 401 KiB | 362 Q