[Resolved] How to pass Javascript value to PHP ?

[sunnyside]

I have one php file, inside of it will use a very simple javascript to get screen resoluton

<SCRIPT LANGUAGE="javascript">
var width = screen.width
var height = screen.height
document.write("<B>You're set to "+width+ "x" +height+"</B>")
</SCRIPT>

In the following I also have a form:

<form .....>
  <input type="text" size="4" name="width" value="<?=$width?>">
</form>

I want to pass javascript value "width" to php form. Would you tell me how to perform this function?

Thank you!

[Kudose]

You can't.

You'll either need to POST width or GET it from the URL.

[sunnyside]

Originally posted by Kudose
You can't.

You'll either need to POST width or GET it from the URL.

How to POST it to URL, it's also fine to me.

[Kudose]

Alter your javascript to redirect to a URL similar to this:

yoursite.com/page.php?width=600&height=800

Then use $GET['width'] and $GET['height'] to extract the variable.

[sunnyside]

Thank you! got it.