Passing array in a URL using PHP and using it in a javascript

Question

This is my php file in which I want to validate only numeric input for my text-boxes , with ids = Mobile & Home:

$elementids = array("Mobile","Home");
$serialized = rawurlencode(serialize($elementids));

$testvar='validatenumbers.php?elementids='.$serialized ;



<script type="text/javascript"  src="only-numbers.php?elementids=<?php echo $serialized ; ?>"></script>

Then , the other file : validatenumbers.php :

$testvar = unserialize(rawurldecode($_GET['elementids']));

echo "<pre>";
print_r($testvar);
echo "</pre>";

It displays nothing , i.e. there is nothing in the '$testvar' array.

----EDIT------ When am checking $_GET, then it shows :

$_GET['elementids'] ---- a:2:{i:0;s:24:\"Mobile\";i:1;s:20:\"Home\";} 

   rawurldecode($_GET['elementids']) ---- a:2:{i:0;s:24:\"Mobile\";i:1;s:20:\"Home\";}


   unserialize(rawurldecode($_GET['elementids']))  = **empty**

Answer 1

1. you don't have to urldecode $_GET values
2. there ought to be an HTML code in your question. Without it it makes a little sense.
3. http_build_query()

Answer 2

2 things.

1) If you want to put stuff on the url, you need to encode it using the urlencode function in php. (http://php.net/manual/en/function.urlencode.php) otherwise, the varibels values might contain characters that the browser might treat differently.

2) There is also a limit on the length of the url. If your array serializes into a very long string, some browsers might truncate it.

But since your sample array is only 2 element, I think you should start by calling urlencode on the value and see if it works.

<script type="text/javascript"  src="only-numbers.php?elementids=<?php echo urlencode($serialized) ; ?>"></script>

----------EDIT----------

Opps, just noticed that you did encode. :(

Then the problem lies with the urldecode on the target file. As php already decoded it for you. OIf you decode it again, you might lose some characters.