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<?php function doSomething($string) { $string[0] = strtolower($string[0]); $func = create_function('$c', 'return "_" . strtolower($c[1]);'); return preg_replace_callback('/([A-Z])/', $func, $string); } echo doSomething('JakubStejskal');
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Error: Call to undefined function create_function() in /in/olUoB:4 Stack trace: #0 /in/olUoB(8): doSomething('jakubStejskal') #1 {main} thrown in /in/olUoB on line 4
Process exited with code 255.

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