If you try session_remember()ing a variable that contains a resource, for instance one that you acquired via pfsockopen(), the value will be mangled, and the resource will become unavailable.

For instance:

<?
	session_start();
	echo gettype($socket),"<br>";
	if (!$socket) {
		$socket = fsockopen("www.php.net", 80);
		session_register("socket");
	}
	echo gettype($socket),"<br>";
?>

The second time you visit the page, the output is "integer<br>resource". It pretty much tells me that my resource gets saved as an integer, and then nobody remebers to turn it back into a resource again :(

Can this be done? Am I thinking in the wrong direction if I need file descriptor persistance?