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<?php $res = false; preg_replace("/fuck/e\x00bitchez/i",'$res = true;',"fuck"); if(false===$res)echo 'Not '; echo "Vulnerable, PHP ";
Output for git.master, git.master_jit, rfc.property-hooks
Warning: preg_replace(): NUL is not a valid modifier in /in/flW3L on line 3 Not Vulnerable, PHP

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