How do I force javascript to view data as a string?

[Arbu]

I have some data in the form "I-AHUSH" (it's a Paypal subscription reference). I'm saving it as a $_SESSION variable on the server. When I recover it and do the following, javascript insists on treating it as something to be evaluated. This causes an error. How do I stop it from doing so? You can see that I've tried forcing it to be a string. But that doesn't help.

var s = String(<?php echo $_SESSION['subscriptionid'] ?>);

Thanks

[Ingolme]

PHP and Javascript operate in two completely different environments. PHP generates Javascript code and Javascript is unaware that PHP was running at all.

You could even write something this and it could potentially generate usable Javascript:

var <?php echo $_SESSION['varname'] ?> = "Hello World!";

 

In order to have Javascript treat something as a string, it has to be wrapped in quotation marks. On PHP's end, you'll want to escape any quotation marks that are in the string itself. A working example should look something like this:

var s = "<?php echo addslashes($_SESSION['subscriptionid']); ?>";

 

[Arbu]

I see. Thanks very much.

[Arbu]

Slightly disconcertingly, though, I find that Notepad++, which I use, doesn't show the code formatting colours when I put the inverted commas around the php. This makes it look as if the code won't work, although clearly it does.