3v4l.org

run code in 300+ PHP versions simultaneously
<?php     function _rh(&$f,&$v) {       static $m;$m?:$m=array();       if(isset($m[$f])) return $m[$f];       for($t=strtok($f,'.'),$q=isset($v[$t])?$v:'';         isset($q[$t])&&$t!==false;         $q=isset($q[$t])?$q[$t]:'',$t=strtok('.')        ); return $m[$f]=($t?'':$q);     }
Output for 5.4.0 - 5.4.32
Parse error: syntax error, unexpected ' ' (T_STRING) in /in/Skp3U on line 2
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected T_STRING in /in/Skp3U on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_STRING in /in/Skp3U on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/Skp3U on line 2
Process exited with code 255.
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211.67 ms | 1395 KiB | 123 Q