Working example of javascript variable value to PHP variable [SOLVED]

Hello…
Please, somebody can post a working example?
I can’t solve this…
Thanks!

I solved this of this way:

  1. into your App creates a new field
  2. from javascript asign the value to new field created.
  3. Now, you can read the value from new field from PHP.

i’m working in a blank config module…

Solved… Sample:

?>
<script> document.cookie = {"myJavascriptVar" : window.innerWidth} </script>
<?php

$SG_Width= $_COOKIE['myJavascriptVar'];
echo $SG_Width;
if ($SG_Width >= 1000) {
	echo "mayor<br>";
} else {
	echo "menor<br>";
}
1 Like

php runs first, prio to javascript so you question seems exotic to me :slight_smile:
when you submit, php takes values from the form.
you cannot exchange variables unless u use COOKIE/form/form fields/post/get parameters.
IMHO

Yes… not work ok this code…

the best solution is
$SG_Width = "<script>document.write(window.innerWidth).value;</script>";

But $SG_Width, in a echo, show the correct result…and when i use in a asignattion, contains the script text…
And i need the value to set the width of an slide…

I’ll keep trying…