3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $string = '  love@outerbanks.org  '; preg_match('/^\x{c2a0}*(?.*)\x{c2a0}*$/u', $string, $out); var_dump($out);
based on l8AQE
Output for 5.2.6 - 7.1.0
Warning: preg_match(): Compilation failed: unrecognized character after (? or (?- at offset 12 in /in/4nV7B on line 4 NULL
Output for 5.2.0 - 5.2.5
Warning: preg_match(): Compilation failed: unrecognized character after (? at offset 12 in /in/4nV7B on line 4 NULL
Output for 4.3.11 - 4.4.8, 5.0.0 - 5.1.6
Warning: preg_match(): Compilation failed: unrecognized character after (? at offset 12 in /in/4nV7B on line 4 array(0) { }
Output for 4.4.9
Warning: preg_match(): Compilation failed: unrecognized character after (? or (?- at offset 12 in /in/4nV7B on line 4 array(0) { }
Output for 4.3.0 - 4.3.10
Warning: Compilation failed: unrecognized character after (? at offset 12 in /in/4nV7B on line 4 array(0) { }