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<?php $Counter = 0; $FolderTitle[$Counter] = "This is 1 example (text) with a (number)(01230_12-3)"; echo preg_match("/\(\K[-\d_]+/", $FolderTitle[$Counter], $out) ? $out[0] : 'no match';
Output for git.master, git.master_jit, rfc.property-hooks
01230_12-3

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