Why It is not possible to serialize PHP built-in objects?
I have tried to unserialize a PHP Object.
Warning: unserialize() [function.unserialize]: Node no longer exists in /var/www/app.php on line 42
But why was that happen?
Even if I found a solution to unserialize simplexml objects, its good to know why php cant unserialize objects?
To serialize simplexml object i use this function
function serializeSimpleXML(SimpleXMLElement $xmlObj)
{
return serialize($xmlObj->asXML());
}
To unserialize an simplexml objetc i use this function
function unser开发者_高级运维ializeSimpleXML($str)
{
return simplexml_load_string(unserialize($str));
}
SimpleXMLElement wraps a libxml resource type. Resources cannot be serialized. On the next invocation, the resource representing the libxml Node object doesn't exist, so unserialization fails. It may be a bug that you are allowed to serialize a SimpleXMLElement at all.
Your solution is the correct one, since text/xml is the correct serialization format for anything XML. However, since it is just a string, there isn't really any reason to serialize the XML string itself.
Note that this has nothing inherently to do with "built-in" PHP classes/objects, but is an implementation detail of SimpleXML (and I think DOM in PHP 5).
just inherent the class(the main xml class would be best) in a other one
and use __sleep to store the data required to initialize simplexml(any object)
and __wake to reinitialize the object as required
this way you can serialize(any object)
edit: remember this class needs to be accessible first, this can be done by loading(including) the class or an __autoload
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