Question

I want to make some thing like this

my-php-file.php

  $lang = 'es';

my-js-file.js

if ($lang == es)
   {
   something-magical-happens;
   }

or like this:

if (URL == www.mydomain.com/index.php?lang=es)
   {
   something-magical-happens;
   }

Answer 1

you could generate js on-the-fly

my.js.php:

<?php echo "//Yes." ?>
var i = "<?php echo $_GET['lang']; ?>";

function doSomethingWithI(){
  alert(i);
}

Now, try to include

<script type="text/javascript" src="my.js.php?lang=es"></script>

in your html and you’ll see 🙂

Edit: Check it in action here: http://h.kissyour.net/so/phpjs/

Edit: Edited example on my server to closer resemble what I wrote here.

Edit: Oh yes. Don’t forget to clean your code!