JavaScript How to obtain get var from script file

Question

Maybe is too basic but i could not do it, i have a php file and inside of it i call a js file. Inside that js i need to obtain a get var from the php file.

I have the following

PHP File:

<script language="javascript" src="scripts/scripts.js?tiempo=<?php echo $marcaTiempo; ?>"></script>

and in the scripts.js i need to get the var tiempo.

How can i achieve it?

Thanks

It is not that, i need to read the var inside the scripts.js, not the php, i don't know how to get it — Douglas Roos, Aug 13 '14 at 20:53
possible duplicate of [How to get the value from URL Parameter?](http://stackoverflow.com/questions/979975/how-to-get-the-value-from-url-parameter) — leo, Aug 13 '14 at 20:53
Are you trying to get something from the URL `"scripts/scripts.js?tiempo...`" or are you trying to get something from the resulting script file? Your question is not clear on that. — jfriend00, Aug 13 '14 at 20:59

score 3 · Accepted Answer · answered Aug 13 '14 at 21:02

Option 1

Make the server handle the js file as a php file, and do something like:

<?php
$tiempo = filter_input(INPUT_GET,"tiempo",FILTER_SANITIZE_STRING);
?>
var tiempo = <?php echo $tiempo; ?>;

Obviously not great for caching.

Option 2

Declare the parameter globally:

<script>
 var tiempo=<?php echo $marcaTiempo; ?>
</script>
<script src="scripts/scripts.js"></script>

and in scripts.js:

var tiempo = window.tiempo;

score 1 · Answer 2 · answered Aug 13 '14 at 21:03

I've solved this in the past by doing the following:

<script type="text/javascript">
  var tiempo = <?php echo $marcaTiempo; ?>;
</script>
<script type="text/javascript" src="scripts/scripts.js"></script>

Then the variable is accessible from your script.

JavaScript How to obtain get var from script file

2 Answers2