validate email address

[ohdang888]

how do i validate an email address?????/... like... make sure there is an @ and a .com, or.net, etc.

 

 

 

i tried the code below but it didn;t work.

 

if(!validate_email_address($email)){

[Orio]

<?php

function valid_email($email)
{
if (!eregi("^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,4})$", $email))
    return false;
return true;
}

?>

 

Orio.

[ohdang888]

How does the return true and return false work???

[MasterACE14]

basically, the return false is at the end of the if. The whole if can be interpretted like this:

IF the email IS NOT valid fail the test otherwise pass the test

 

Returning false is just a way of letting the script know whether the test was a success or not. by returning false your letting it know that the email address it NOT valid so you can then echo "your email is not valid"; or whatever.

 

its kinda hard to explain, but I hope you get the idea 

 

Regards ACE