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<?php $matches = AH587910; preg_match( '#^AH\d{6}$#',$matches ); echo $matches[5]; // 1234
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Error: Undefined constant "AH587910" in /in/JX4E4:2 Stack trace: #0 {main} thrown in /in/JX4E4 on line 2
Process exited with code 255.

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