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<?php $local = 'johnsnow123@'; $localExpression = '^[a-z0-9_-]+(?:[a-z0-9._%+-]+)*'; if (mb_eregi($localExpression, $local) === false) { echo 'invalid'; } else { echo 'valid'; }
Output for git.master, git.master_jit, rfc.property-hooks
valid

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