Validating Email address

[murphy1]

Im looking to make sure a submitted email is valid, i want to use as little code as possible. I'm looking to do something like this

if ($_POST['action'] == "subscribe" && $_POST['email'] == "valid") {
do this;
} else {
do this;
}

[keith73]

here's a function I use.
It returns true or false

/*****************************************
function    : isValidEmail
description : Checks to make sure email address is valid format
return value: BOOL
parameters  : 1
    email = STRING:the email address
*****************************************/

function isValidEmail($email)
{
    if (preg_match("/^[A-z0-9_\-\.]+@[A-z0-9_\-\.]+\.[A-z]+$/",$email)){
        return(true);
    } else {
        return(false);
    }
}//END function isValidEmail

if you use it, change your code to this:

if ($_POST['action'] == "subscribe" &&  isValidEmail($_POST['email']) ) {
do this;
} else {
do this;
}

• keith

[Nehle]

Or, a little optimized:

function isValidEmail($txt)
{
    return(preg_match("#^((\\w|-|\\.)+@((\\w|-|\\.)+\\.[::alpha::]{2,4}$#",$txt));
}