3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = "oAAAoooo"; echo preg_replace_callback( '/([\x00-\x1F\*\(\)\\\\])/', function ($matches) { return "\\".join("", unpack("H2", $matches[1])); }, $str ); */ $str = "oAAAoooo"; function matches($matches) { return "\\".join("", unpack("H2", $matches[1])); } echo mb_ereg_replace_callback( '([\x00-\x1F\*\(\)\\\\])', "matches", $str ); ?>
Output for 5.3.0 - 5.3.28, 5.4.0 - 5.4.25
Parse error: syntax error, unexpected '*' in /in/cAc1F on line 11
Process exited with code 255.
preferences:
180.63 ms | 1399 KiB | 62 Q