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<?php $email = '8w0rohd_434kd3xd@2kya--0hl3hi-rxmux6.rn'; var_dump(array( 'filter_var' => filter_var($email, FILTER_VALIDATE_EMAIL), 'preg_match' => preg_match('/^[a-z0-9!#$%&\'*+\\/=?^_`{|}~-]+(?:\\.[a-z0-9!#$%&\'*+\\/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?$/i', $email), ));
Output for git.master, git.master_jit, rfc.property-hooks
array(2) { ["filter_var"]=> string(39) "8w0rohd_434kd3xd@2kya--0hl3hi-rxmux6.rn" ["preg_match"]=> int(1) }

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