Edit report at http://bugs.php.net/bug.php?id=51938&edit=1
ID: 51938 Updated by: johan...@php.net Reported by: phil dot brookes at gmail dot com Summary: serializing an object that implements serializable -Status: Open +Status: Bogus Type: Bug Package: SPL related Operating System: CentOS kernel 2.6.18-164.11.1 PHP Version: 5.3.2 New Comment: Thank you for taking the time to write to us, but this is not a bug. Please double-check the documentation available at http://www.php.net/manual/ and the instructions on how to report a bug at http://bugs.php.net/how-to-report.php The serialize() method of an object implementing Serializable is called by serialize() so you get an recursion. you have to implement Serializable only when you want do use your own serialization logic for your class. The serialize() method of the object shall not be called directly but by PHP's serializer. serialize($serializable); Your code gives infinite recursion. Infinite recursion is known to lead to a stack overflow. Previous Comments: ------------------------------------------------------------------------ [2010-05-28 00:37:50] phil dot brookes at gmail dot com Description: ------------ Hello, Create a class and implement Serializable, then use the serialize function to return the value of serialize($this), apache crashes with an internal server error, the apache error log reports a Premature end of script headers error. If line 17 is commented then the apache server does not crash. Test script: --------------- <?php /**Simple class that is serializable and implements the serializable interface */ class ImplementsSerializable implements Serializable { /** returns the serialization of itself */ public function serialize() { return serialize($this); } /** returns unserialized object passed in $serialized */ public function unserialize($serialized) { return unserialize($serialized); } } /** Create a new ImplementSerializable object */ $serializable = new ImplementsSerializable(); /** Store the serialized value in $serialized, this causes apache to crash, with a * Premature end of script headers error in the apache error log */ $serialized = $serializable->serialize(); /**point of execution does not reach here */ $unserialized = $serializable->unserialize($serialized); echo "finished!"; ?> Expected result: ---------------- return value equal to the object serialized using the serialize function. Actual result: -------------- Apache crashes with internal server error and a Premature end of script headers error. ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/bug.php?id=51938&edit=1
