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run code in 150+ php & hhvm versions
Bugs & Features
<?php $msg = "1a12v21s1fs4d4"; $txt = "/(1[a-z]+1)(4[a-z]4)/"; $res = preg_replace_callback($txt,function($m){ print_r($m); //return $m; },$msg); echo $res;
Output for 5.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
1a12v21s1fs4d4
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/48IdT on line 4
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 in /in/48IdT on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/48IdT on line 4
Process exited with code 255.