note 60356 deleted from function.unserialize by aharvey
| From: | aharvey@php.net | Date: | Tue, 06 Nov 2012 01:25:42 +0000 |
| Subject: | note 60356 deleted from function.unserialize by aharvey | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-191695@lists.php.net to get a copy of this message | ||
Note Submitter: veg at rd dot no
----
Unserializing an object of a class that hasn't been declared where it is being unserialized
will result in an unusable object. I do not know why this happens, but I know of two workarounds
which I've written about here; http://vega.rd.no/entry/200601_serializing_objects_in_php
In short, the solution is to declare the class before unserializing the object; so this code will do
when unserializing an object of type MyClass;
<?php
class MyClass {}
$object = unserialize($serializedData);
?>
However, if you have several different classes, which you don't necessarily know the names of
beforehand, use this short function to handle it for you;
<?php
function unserializeUnknownObject($text)
{
$matches = Array();
preg_match_all('/O:(\d)*:"([^":]*)":/', $text, $matches);
foreach ($matches[2] as $class)
{
eval('class '.$class.' { }');
}
return unserialize($text);
}
$object = unserializeUnknownObject($serializedData);
?>
This could also have been accomplished by using unserialize_callback_func.