3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $array=array("a"=>aaa,"b"=>aaaaadddd); $array = array_combine(array_map(function($k){ return 'prefix'.$k; }, array_keys($array)) , $array ); echo "<pre>";print_r($array);
Output for 5.3.0 - 7.1.0
Notice: Use of undefined constant aaa - assumed 'aaa' in /in/WmLa5 on line 2 Notice: Use of undefined constant aaaaadddd - assumed 'aaaaadddd' in /in/WmLa5 on line 2 <pre>Array ( [prefixa] => aaa [prefixb] => aaaaadddd )
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/WmLa5 on line 3
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_FUNCTION, expecting ')' in /in/WmLa5 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/WmLa5 on line 3
Process exited with code 255.