Setting PHP variable to JavaScript code? [duplicate]

Question

I need to change the value of a PHP variable to JavaScript code.

The value of the PHP variable has to be something out of (JavaScript) localStorage.

So it is something like this.

$variable = localStorage.anameofalocalstorage; //The localstorage part is js

How can I do this?

Only JavaScript can read localStorage. So, if you want PHP to get the value, you need to send it from JavaScript; possibly via AJAX. — gen_Eric
– gen_Eric, Commented Jul 5, 2013 at 16:29
You'll need to get your variable to the erver through a get or post request, eventually in Ajax... no other way — Laurent S.
– Laurent S., Commented Jul 5, 2013 at 16:29
Possible duplicate: stackoverflow.com/questions/4298091/… stackoverflow.com/questions/1917576/… stackoverflow.com/questions/9836748/… — pattyd
– pattyd, Commented Jul 5, 2013 at 16:31
@RocketHazmat Oh.. thanks, but i don't really know Ajax.. can you please give me the code for doing that ? — Evert De Spiegeleer
– Evert De Spiegeleer, Commented Jul 5, 2013 at 16:32
@EvertDeSpiegeleer: There are lots of AJAX tutorials out there, have a look around :-) — gen_Eric
– gen_Eric, Commented Jul 5, 2013 at 16:33

Alexander Jardim · Accepted Answer · 2013-07-05 17:06:07Z

0

This is an example code using jquery for the ajax call.

<?php

$variable_that_should_be_set=isset($_GET['shoudBeSet'])?$_GET['shoudBeSet']:'notSet';

?>

<html>
    <head>
        <script src="http://code.jquery.com/jquery-1.10.1.min.js"></script>

    </head>
    <body>
        <div id="div1"><?php echo $variable_that_should_be_set;?></div>
        <a href="#" id="button">Click here to Set</a>
        <script>
            $("#button").click( function () {
                $.get("?shouldBeSet=this_is_set")   
            })
        </script>
    </body>
</html>

answered Jul 5, 2013 at 17:06

Alexander Jardim

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