Assign Variable to PHP

JavaScript
1

Hi there,

I was wondering if it were possible to assign a PHP variable’s value to that of a JS variable.
What I mean is having a var in JS, and then making a PHP variable equal to the JS one.

Like this:

function username() {
var username = "Mr. Jones";

<?php $username = username; ?>

}

Now of course, this file will be .php, and will be called as such when including it to a page (<script type=“text/javascript” src=“username.php”).

The above code doesn’t work… But I want to know if it can be done in such a manner.
I just want a PHP variable to be equal to a variable in JS.

Any ideas?

2

Without something like AJAX there is no way you can do this.
What is it that you ultimately would like to achieve with this? Maybe there are other ways :slight_smile:

3

Well, I was hoping to quickly determine if a username exists with the use of JavaScript and PHP… Without having to reload the page.

4

Remember, you are OUTPUTTING javascript from PHP, so you just need to echo the value.

If you are using the technique I showed in my reply to your other post, it is a no brainer.
Show more of your current code.

5

I agree with ScallioXTX that this functionality is best suited for AJAX.

6

Yes in that case you indeed need AJAX.
Here’s a tutorial on how to that with jQuery: check username availability in ajax and php | ajax username checker

7

Alright, thanks.