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<?php $str= aaa1; echo preg_replace("/[^0-9,.]/", "", $str);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Error: Undefined constant "aaa1" in /in/CEfmJ:2 Stack trace: #0 {main} thrown in /in/CEfmJ on line 2
Process exited with code 255.

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