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Posted By

gdonald on 01/12/07


Tagged

regex email php


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basicmagic
vali29
hudge


PHP Valid Email

Published in: PHP 

Plain TextExpand 
  1. error_reporting( E_ALL );
  2.  
  3. function is_valid_email( $email )
  4. {
  5.   return preg_match( '/[.+a-zA-Z0-9_-]+@[a-zA-Z0-9-]+.[a-zA-Z]+/', $email );
  6. }
  7.  
  8. $emails = array(  'br0k3n',
  9.                   'fred_dred@aol.com',
  10.                   'fred-dred@aol.com',
  11.                   'fred.dred@aol.com',
  12.                   'fred+dred@aol.com' );
  13.  
  14. foreach( $emails as $email )
  15. {
  16.   echo $email . ' is' . ( is_valid_email( $email ) ? '' : ' not' )  . " valid\n";
  17. }

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Posted By: collin on January 12, 2007

See http://www.ilovejackdaniels.com/php/email-address-validation/ for the proper way to do RFC 2822 validation.

Posted By: tylerhall on January 12, 2007

The above code doesn't work. It lets through the following invalid email addresses:

  • .tyler@foo.com (email cannot start with a period)
  • tyler@foocom (no period between domain and tld)
  • tyler@foo.foooooo (invalid tld)

Also, your regex is limiting the use of many other ASCII characters that RFC-2822 allows in an email address.

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