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<?php $str = "dangers:(cloud1条 OR deep1条)"; var_dump(preg_match_all('/((?<key>[^\:\(\)]+)\s*\:\s*\(([^\(])*))?/i', $str, $m)); var_dump($m);
Output for git.master, git.master_jit, rfc.property-hooks
Warning: preg_match_all(): Compilation failed: unmatched closing parenthesis at offset 38 in /in/JAbB7 on line 4 bool(false) NULL

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