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<?php function remove_shout($_text,$_max_caps=3) { return preg_replace_callback('/[A-Z]{$_max_caps,}/',create_function('$matches','return strtolower($matches[0]);'),$_text); } $input = "This is so AWESOME COOL!"; echo remove_shout($input);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Error: Call to undefined function create_function() in /in/438rf:5 Stack trace: #0 /in/438rf(10): remove_shout('This is so AWES...') #1 {main} thrown in /in/438rf on line 5
Process exited with code 255.

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