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<?php $id = "1%0AUNION SELECT 1,2,3,4,5,6 -- -"; if (preg_match('/^[0-9]+$/m', $id)) { echo 'This is a valid id.'; } else { echo 'Are you trying to hack me?'; }
Output for git.master, git.master_jit, rfc.property-hooks
Are you trying to hack me?

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