3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(1, 2, 3, 4, 5 ); $step = 2; function myfunc($key, $value) { if ($key == $step) echo ' $ '; echo "$value "; } array_walk($a, 'myfunc');
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
Warning: Undefined variable $step in /in/6LXGY on line 7 0 Warning: Undefined variable $step in /in/6LXGY on line 7 1 Warning: Undefined variable $step in /in/6LXGY on line 7 2 Warning: Undefined variable $step in /in/6LXGY on line 7 3 Warning: Undefined variable $step in /in/6LXGY on line 7 4
Output for 5.0.4 - 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 - 5.6.21, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.12 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined variable: step in /in/6LXGY on line 7 0 Notice: Undefined variable: step in /in/6LXGY on line 7 1 Notice: Undefined variable: step in /in/6LXGY on line 7 2 Notice: Undefined variable: step in /in/6LXGY on line 7 3 Notice: Undefined variable: step in /in/6LXGY on line 7 4
Output for 7.3.32 - 7.3.33
0 1 2 3 4
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.3
Notice: Undefined variable: step in /in/6LXGY on line 7 0 Notice: Undefined variable: step in /in/6LXGY on line 7 1 Notice: Undefined variable: step in /in/6LXGY on line 7 2 Notice: Undefined variable: step in /in/6LXGY on line 7 3 Notice: Undefined variable: step in /in/6LXGY on line 7 4
preferences:
217.17 ms | 402 KiB | 311 Q