[RESOLVED] REGEX to validate email inputs

[toraj58]

i need a regex to validate the email input in the textbox of the form that end users enter.

[PeejAvery]

You need to learn to start using Google. It can find plenty of solutions so that you don't have to wait upon us to reply.

http://www.google.com/search?hl=en&q...hp&btnG=Search

[toraj58]

thanks; i googled it!
i just paste the code here for other lazy developers like me

<?php

$email = "[email protected]";

if(eregi("^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,3})$", $email)) {
  echo "Valid email address.";
}
else {
  echo "Invalid email address.";
}

?>

[toraj58]

the previous post that i did uses POSIX function i investigated more and found that PCRE (Perl Compatible Regular Expression) functions are faster and more popular that POSIX functions, so i post the PCRE code here also as a better solution for whom care to this thread:

<?php 
  if ($submit) { 
    $okay = preg_match(
      '/^[A-z0-9_\-]+[@][A-z0-9_\-]+([.][A-z0-9_\-]+)+[A-z]{2,4}$/', 
      $emailfield
    ); 
    if ($okay) { 
      echo "E-mail is validated"; 
    } else { 
      echo "E-mail is incorrect"; 
    } 
  }else { 
?> 
<form method="POST" action="email.php"> 
E-mail address: <input type="text" name="emailfield"> 
<br><input type="submit" name="submit" value="Validate"> 
</form> 
<?php  
}  
?>

Touraj Ebrahimi [toraj_e] [at] [yahoo] [dot] [com]