Change a value in a PHP variable using JavaScript

Question

I have a value in a php variable $thumb_path="images/Gallery1/thumbs/";. I need to change this value to $thumb_path="images/Gallery2/thumbs/"; when I am clicking on Gallery2 Link n my project. Is it possible to change a value in a PHP variable using JavaScript?

Or is there any other way to do this?

i do not think you are approaching your problem correctly. php is happening on the server side, however javascript is client-side (browser). perhaps if you provide background for your problem we can help direct you to the correct course of action — BigFatBaby
– BigFatBaby, Commented Mar 31, 2011 at 11:02

ayk · Accepted Answer · 2011-03-31 11:16:25Z

2

JS is a client side language, PHP is parsed on server, so you can't change the php file itself with js... BUT: :)

You can manage it with GET:

$thumb_path="images/Gallery".(($_GET['gallery'] && preg_match('/^[0-9]+$/', $_GET['gallery'])) ? $_GET['gallery'] : "1")."/thumbs/";

now you can call your link like this:

http://www.page.com/yourphpfile.php?gallery=2

This will open gallery 2.

If you dont set ?gallery gallery 1 will shown as default.

edited Mar 31, 2011 at 11:16

answered Mar 31, 2011 at 11:06

ayk

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Tobias Over a year ago

you should check the GET var because of possible malicous code... for example do an intval() on it...

fabrik · Accepted Answer · 2011-03-31 11:02:03Z

0

Since JavaScript is a client-, and PHP is a server-side language, obviously you can't.

You can use some AJAX if possible. If this is some kind of dynamic variable (you'll getting this data from a form), you can change it with JavaScript.

answered Mar 31, 2011 at 11:02

fabrik

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cwallenpoole Over a year ago

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