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<?php $matches=array(); $string = 'This is a [templateVar]'; preg_match_all("^[^1,2,3]/", $string, $matches); var_dump($matches);
Output for git.master, git.master_jit, rfc.property-hooks
Warning: preg_match_all(): Unknown modifier '1' in /in/JElEL on line 5 array(0) { }

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