Created
March 10, 2011 13:09
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Checks if an email is a valid RFC 2822 email address
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<?php | |
/** | |
* Checks if an email is a valid RFC 2822 email address | |
* | |
* Examples: | |
* <code> | |
* <?php | |
* validate_email('dev@felds.com.br'); // returns true | |
* validate_email('Felds Liscia <dev@felds.com.br>'); // returns false | |
* ?> | |
* </code> | |
* | |
* @author Felds Liscia <dev@felds.com.br> | |
* @version 2011-03-10 | |
* @see http://www.regular-expressions.info/email.html | |
* @param string $email The email to be validated | |
* @return bool | |
*/ | |
function validate_rfc_2822_email($email) | |
{ | |
$regexp = '/^(?:[a-z0-9!#$%\'*+\/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&\'*+\/=?^_`{|}'. | |
'~-]+)*|"(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21\x23-\x5b\x5d-\x7f]|\\['. | |
'\x01-\x09\x0b\x0c\x0e-\x7f])*")@(?:(?:[a-z0-9](?:[a-z0-9-]*[a-z0-'. | |
'9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?|\[(?:(?:25[0-5]|2[0-4][0-'. | |
'9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?'. | |
'|[a-z0-9-]*[a-z0-9]:(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21-\x5a\x53-' . | |
'\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])+)\])$/'; | |
return (bool) preg_match($regexp, $email); | |
} |
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