Javascript and PHP

[-Karl-]

First of all, I'm not sure this is possible, but it's worth asking.

 

I have my Javascript code

function checkPasswordMatch(whatYouTyped) {
var fieldset = whatYouTyped.parentNode;
var txt1 = whatYouTyped.value;
if (document.basicform.password.value == document.basicform.confirmpassword.value) {
	fieldset.className = "welldone";
} else {
	fieldset.className = "bad";
}
}

 

Which will display a green tick if both password fields match, this is for registration. However, is there a way I can Post the result of this to PHP, so that when they person actually submits the form it will either add it to the database if they are the same, or die if they are not. Without having to write a seperate PHP function. I know Javascript is client-side and PHP is server-side. I just don't want to write unnecessary code if there's no need.

 

Thanks in advance.

[andrewgauger]

Any validation on the client side will only mitigate server overhead, not eliminate it.  Everything you do on the client side you need to re-validate with PHP.  What if a user has Javascript disabled?

[-Karl-]

Any validation on the client side will only mitigate server overhead, not eliminate it.  Everything you do on the client side you need to re-validate with PHP.  What if a user has Javascript disabled?

 

Fair point, never thought about that

[-Karl-]

Mm, this is strange.

 

I have my PHP function:

function verifyPassword() {
$password1 = $_POST['password'];
$master1 = $_POST['master'];
if ($password1 == $master1) {
	return true;
} else { 
	return false;
	die('Passwords did not match');
}
}

 

and this is in my form

if (isset($_POST['submit']) && verifyPassword == true) {

 

Any ideas what I've done wrong as it still submits the data and creates the account whether both match or not.

[-Karl-]

Nevermind

 

if (isset($_POST['submit']) && verifyPassword == true) {

 

just needed to be

 

if (isset($_POST['submit']) && verifyPassword(true)) {

[andrewgauger]

verifyPassword doesn't take arguments,

you can do this:

if (isset($_POST['submit']) && verifyPassword()) {

and then you won't get debugging warnings.