function to validate email?

[laredotornado]

Hello, Could someone point me to a PHP 4 function that validates that
an email address is of the right form?

Thanks for your help, - Dave

[Philip Ronan]

"la***********@zipmail.com" wrote:

Hello, Could someone point me to a PHP 4 function that validates that
an email address is of the right form?

Thanks for your help, - Dave

This is what I use:

function checkEmailSyntax($em)
{
$re_bad = '/(@)|(\.\.)|(^\.)|(\.$)/';
$re_ok1 = '/^[^\x00-\x1f <>\x22\x7f]+$/';
$re_ok2 = '/^([A-Za-z0-9\-_]+\.){1,5}[A-Za-z]{2,5}$/';

$t_split = explode("@",$em);

if (count($t_split) == 2) {
$t_name = $t_split[0];
$t_domain = $t_split[1];

if ( !preg_match($re_bad, $t_name) &&
preg_match($re_ok1, $t_name) &&
!preg_match($re_bad, $t_domain) &&
preg_match($re_ok2, $t_domain) ) {
return true;
}
}
return false;
}

--
phil [dot] ronan @ virgin [dot] net
http://vzone.virgin.net/phil.ronan/

[bonehead]

Philip Ronan wrote:

"la***********@zipmail.com" wrote:

Hello, Could someone point me to a PHP 4 function that validates that
an email address is of the right form?

Thanks for your help, - Dave

This is what I use:

function checkEmailSyntax($em)[snip]

dude,

very cool, probably the nicest i've seen. i'm going to test it out on
the form i'm currently building. here's the one i wrote and have been
using, just for laughs:

/*Missing or incorrectly formatted email address*/
if(empty($senderemail))
{
$errormessage.="Please Provide Your E-Mail Address<br>";
}
else if
(!eregi('^[-a-zA-Z0-9_\.]+@[a-zA-Z0-9\-]+\.[a-zA-Z0-9\-\.]+$',$senderemail))
{
$errormessage.="Please Provide an E-mail Address in a Valid Format<br>";
}