PHP variable in Javascript (.js file)

Please note that I have omitted some code below for readability.

I have a .php file, feed.php:

Expand|Select|Wrap|Line Numbers

 <?php 

  require_once 'config.php';

  $a_url = $_POST["aurl"];

  $v_url = $_POST["vurl"];

?>
 
<html>
 
<head>
 
<link rel="stylesheet" type="text/css" href="interstitial.css" />
 
<script type="text/javascript" src="interstitial.js">
 
</script>
 
</head>
 
<body>
 
<iframe src = "<?=$v_url;?>" width="100%" height="100%" marginwidth="0" marginheight="0" frameborder="0" vspace="0" hspace="0" scrolling="no"></iframe>
 
</body>

</html>

Please note the assigning of variable '$a_url' in the code above. Also note the loading of the interstitial.js file (<script type="text/javascript" src="interstitial.js">).

Here is my interstitial.js file:

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 var interstitialBox={

displayfiles: ['<?php echo $a_url?>'],
 
createcontainer:function(){

//write out entire HTML for Interstitial Box:

document.write('<div id="interContainer">'+this.defineheader+'<div id="interContent"></div></div><div id="interVeil"></div>')

this.interContainer=document.getElementById("interContainer") //reference interstitial container

this.interVeil=document.getElementById("interVeil") //reference veil

this.standardbody=(document.compatMode=="CSS1Compat")? document.documentElement : document.body //create reference to common "body" across doctypes

},
 
initialize:function(){

this.createcontainer() //write out interstitial container

this.ajaxconnect(this.displayfiles[Math.floor(Math.random()*this.displayfiles.length)], this.interContainer) //load page into content via ajax

this.dotask(window, function(){interstitialBox.hidescrollbar(); interstitialBox.getscrollbarwidth(); setTimeout("interstitialBox.showcontainer()", 100)}, "load")

this.dotask(window, function(){interstitialBox.showcontainer()}, "resize")

}

}

I want to use the $a_url variable set in feed.php within the javascript code in the interstitial.js file. As you can see above, I tried using:

displayfiles: ['<?php echo $a_url?>'],

in addition to several other variations. Doesn't work. Any suggestions?

May 15 '10 #1

Subscribe Post Reply

✓ answered by usmanhalalit

@Dormilich
OK let him try like this:-

Change the JS file extension to PHP (interstitial.php), for example;

interstitial.php:-

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 <?php

header('Content-type: application/javascript'); 

$myvar='usman';

?>

//js starts

alert('<?php echo $myvar ?>');

feed.php:-

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 <html>

<head>

<script type='text/javascript' src='interstitial.php'></script>

</head>

<body>

<?php

    echo "hi";

?>

</body>

</html>

2689

Dormilich

8,658

Expert Mod 8TB

you try to access a PHP variable across different non-PHP files, which naturally doesn't work (PHP long finished working, when the browser loads the JavaScript file)

May 15 '10 #2

usmanhalalit

Why don't you use just a single file?

Try using interstitial.js code in feed.php inside <head> section:-

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 <script type="text/javascript">

//here paste your interstitial.js code

</script>

[Removed link]

May 15 '10 #3

Dormilich

8,658

Expert Mod 8TB

Why don't you use just a single file?

a) maintenance
b) code re-use
c) separation of content and behaviour

May 15 '10 #4

usmanhalalit

@Dormilich
OK let him try like this:-

Change the JS file extension to PHP (interstitial.php), for example;

interstitial.php:-

Expand|Select|Wrap|Line Numbers

 <?php

header('Content-type: application/javascript'); 

$myvar='usman';

?>

//js starts

alert('<?php echo $myvar ?>');

feed.php:-

Expand|Select|Wrap|Line Numbers

 <html>

<head>

<script type='text/javascript' src='interstitial.php'></script>

</head>

<body>

<?php

    echo "hi";

?>

</body>

</html>

May 16 '10 #5

WPPJames

usmanhalalit: You were right...the .js file did have to be renamed to .php. I think I have everything working now. You were a great help. Many thanks!

May 16 '10 #6

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