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run code in 150+ php & hhvm versions
Bugs & Features
<?php preg_match('~?:\/*(public|health)+~', "hello/public", $match); var_dump($match);
Output for 5.2.0 - 7.1.0
Warning: preg_match(): Compilation failed: nothing to repeat at offset 0 in /in/rEmDQ on line 4 NULL
Output for 4.3.11 - 5.1.6
Warning: preg_match(): Compilation failed: nothing to repeat at offset 0 in /in/rEmDQ on line 4 array(0) { }
Output for 4.3.0 - 4.3.10
Warning: Compilation failed: nothing to repeat at offset 0 in /in/rEmDQ on line 4 array(0) { }