3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php /*function rev($str) { if ( ! $str ) { return; } return rev(substr($str,1)) . $str{0}; }*/ function sum($arr) { if ( empty($arr) ) { return 0; } return $arr[0] + sum(unset($arr[0])); } $a = array(5,4,7,8,9,3); echo sum($a);
Output for 5.4.0 - 5.4.26
Parse error: syntax error, unexpected 'unset' (T_UNSET), expecting ')' in /in/IimF4 on line 13
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.28
Parse error: syntax error, unexpected T_UNSET, expecting ')' in /in/IimF4 on line 13
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_UNSET, expecting ')' in /in/IimF4 on line 13
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/IimF4 on line 13
Process exited with code 255.