How do I pass session variables from one domain to another in PHP
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Published on 2010-04-26T16:25:56Z
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2010/04/26
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Hi everyone, I have encountered a situation where I need to pass $_SESSION variables from one domain to an iFrame page from another domain. I have spent the last 16 days trying various methods to no avail. I think that the only logical way would be to encode the variables in the url that calls the iFrame and decode them in th iFrame page. I am not sure how to go about this and I am looking for any samples, assistance etc that I can find.
Thanks for any and all suggestions.
Here is an example of what I am trying to do...
Example:
<!-- Note only using hidden as I didn't want to build the form at test phase-->
<form name="test" method="post" action="iframe_test.php">
<input type="submit" name="Submit" />
<input type="hidden" name="fName" value="abc" />
<input type="hidden" name="lName" value="def" />
<input type="hidden" name="address1" value="ghi" />
<input type="hidden" name="address2" value="jkl" />
<input type="hidden" name="country" value="mno" />
<input type="hidden" name="postal_code" value="pqr" />
<input type="hidden" name="city" value="stu" />
<input type="hidden" name="retUrl" value="vwx">
<input type="hidden" name="decUrl" value="yz">
So from here I am hitting the iframe_test.php and doing the following: PHP Code: function StripSpecChar($val) { return (preg_replace('/[^a-zA-Z0-9" "-.@\:\/_]/','', $val)); }
foreach ($_POST as $key => $val) {
$_SESSION[$key] = StripSpecChar($val);
}
and I get a session array that looks like this: Code:
Array
(
[fName] => abc
[lName] => def
[address1] => ghi
[address2] => jkl
[country] => mno
[postal_code] => pqr
[city] => stu
[retUrl] => vwx
[decUrl] => yz
)
Still all good so far....call the iFrame
Code:
<body>
Some page stuff here
<div align="center"><span class="style1"><strong>This is the iFrame Page</strong></span>
</div>
<div align="center">
<iframe src="https://www.other_domain.org/iframe/reserve.php" width="500" height="350" frameBorder="0"></iframe>
</div>
</body>
So HOW do I take...
$_SESSION['fName']['abc'];
$_SESSION['lName']['def'];
$_SESSION['address1']['ghi'];
$_SESSION['address2']['jkl'];
$_SESSION['country']['mno'];
$_SESSION['postal_code']['pqr'];
$_SESSION['city']['stu'];
$_SESSION['retUrl']['vwx'];
$_SESSION['decUrl']['yz'];
and turn it into the encoded url that I am looking for? Further once that is done how to I get the session vars back as session vars on that new domain iFrame page...
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