Simplexml objects in PHP cannot be serialized.

Source: Internet
Author: User

 

I believe that friends who often process XML will use simplexml_load_string, which turns XML into an object, which is very convenient. But if you want to serialize this object and cache it, be careful. There is no problem when writing the cache, but an error occurs when reading the cache. The error is "Node no longer exists in XXXX. php on line 15". The error occurs when the simplexml object is deserialized. It is probably a PHP bug.

The code below can verify my experience and be careful when serializing simplexml objects in the future.

<? PHP
$ DATA = <XML
<? XML version = '1. 0'?>
<Articles>
<Article>
<Title> Wang open-source PK Bill </title>
</Article>
</Articles>
XML;
$ Xml = simplexml_load_string ($ data );
$ STR = serialize ($ XML );
Echo "$ Str ";
$ New_xml = unserialize ($ Str );
Echo serialize ($ new_xml )."";
?>

 

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