Validate an email

This script takes an email address and validates it to see whether the email containts the "@" character. If it does not the script prints "invalid" if it does then it will print "valid" however you can edit it at this part. It can be used as a function or as plain code. eg: www.whatever.com/email.php?email=someone@earthweb.com would result TRUE. www.whatever.com/email.php?email=someoneearthweb.com would result in invalid.

function validate_Email(){

$x = ereg("[@]",$email);

if($x==0){ PRINT" The email is invalid";EXIT;}

PRINT"Email is valid";

}