3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $params = array("full"); $route = "/user/[a-z0-9:username]+"; echo preg_replace_callback('~\[([a-z0-9\.\-_\+]+)\:([a-z0-9\_]+)\](+|*|{[0-9](?:,[0-9])?}?)~', function($matches) use($params) { $params[] = $matches[2]; return '[' . $matches[1] . ']' . $matches[3]; }, $route); var_dump($params);
Output for 5.3.0 - 7.1.0
Warning: preg_replace_callback(): Compilation failed: nothing to repeat at offset 38 in /in/VrLXW on line 7 array(1) { [0]=> string(4) "full" }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/VrLXW 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/VrLXW on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/VrLXW on line 4
Process exited with code 255.