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<?php $string = '1234567890-=qwertyuiop[]\asdfghjkl;zxcvbnm,./~!@#$%^&*()_+QWERTYUIOP{}|ASDFGHJKL:"ZXCVBNM<>?'; $string = preg_replace('/\d|\W|_/g', '', $string); echo $string;
Output for git.master, git.master_jit, rfc.property-hooks
Warning: preg_replace(): Unknown modifier 'g' in /in/b4ge5 on line 4

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