How to pass value from javascript to php in same page

Question

Im tying to implament a preloader for swf based on this Post, but im getting trouble passing the javascript value to a php variable.

     <script type="text/javascript">

        var swfJSPreLoaderConfig = {

         'assets':['swf/test.swf'],

            'assetLoaded': function( asset){

             alert(asset);

            },}

    </script>

The alert in the above code shows only when the swf file test.swf is fully downloaded. the value that im trying to get in php is asset ( this value contain the swf file path, in this example is swf/test.swf. the alert fires always when the swf files is fully dowloaded and it works very good.)

i tried something like this to get it in a php variable. but no lucky.

$filename = $_REQUEST['asset'];

also i tired using ajax but nothing.

    <script type="text/javascript">

     var swfJSPreLoaderConfig = {

       'assets':['swf/test.swf'],

         'assetLoaded': function( asset){   

                $.ajax ({ 
                type: "post",
                url: "index.php",
                data: { 'asset': asset },
                success: function()
                    {
                        alert(asset);
                    }
                });

            },}

    </script>

and then

 $filename = $_REQUEST['asset'];

Whats worng?

Krish R · Accepted Answer · 2014-01-21 04:12:44Z

1

Try this,

data: { 'asset': asset },
success: function(response)
     {
        alert(response);
     }

instead of,

  data: { 'asset': asset },
  success: function()
        {
          alert(asset);
        }
  });

PHP:

 echo $filename = $_REQUEST['asset'];

answered Jan 21, 2014 at 4:12

Krish R

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9 Comments

Krish R Over a year ago

Create new page assets.php in that page you add this echo $filename = $_REQUEST['asset']; and update that page name in $.ajax url parameter!

mwweb Over a year ago

the alert shows the value of asset but no echo of variable

Krish R Over a year ago

Yes, it should print the value of the asset.

mwweb Over a year ago

thank your for your help but after doing all the steps you requested no echo of echo $filename = $_REQUEST['asset']; in index.php . im getting mad now.

Krish R Over a year ago

Things are, You can't pass the javscript value into php variable, using ajax you can embed the php output into html using some selector.

|

Schien · Accepted Answer · 2014-01-21 04:15:02Z

0

Change from

url: "index.php"

to

url: "index.php?asset="+asset

Then in PHP, use:

echo $_GET['asset'];

to confirm that you are sending the correct value

answered Jan 21, 2014 at 4:15

Schien

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2 Comments

bansi Over a year ago

why do you want to change the POST method to GET ?

Schien Over a year ago

Didn't see that he was sending it in the data field. Then his code was already working, except that he didn't use an echo to see it. Also the alert should be using the value from the callback, not the original asset value.

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