The behaviour of these functions is affected by settings in
|unserialize_callback_func||NULL||PHP_INI_ALL||Available since PHP 4.2.0.|
For further details and definitions of the PHP_INI_* constants, see the Appendix I,
Here's a short explanation of the configuration directives.
The unserialize() callback function will called (with the undefined class' name as parameter), if the unserializer finds an undefined class which should be instanciated. A warning appears if the specified function is not defined, or if the function doesn't include/implement the missing class. So only set this entry, if you really want to implement such a callback-function.
See also unserialize().
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