PHP K�sikirja
Edellinen |  | Seuraava

# CXXIX. Variable Handling Functions

# Introduction

For information on how variables behave, see the Variables entry in the Language Reference section of the manual.

# Requirements

T�m�n laajennuksen asentaminen ei vaadi ylim��r�isi� ohjelmakirjastoja.

# Installation

N�iden funktioiden k�ytt� ei vaadi erillisten ohjelmien asentamista; ne toimitetaan PHP:n mukana.

# Runtime Configuration

The behaviour of these functions is affected by settings in `php.ini`.

Taulu 1. Variables Configuration Options

Name | Default | Changeable | Changelog
--- | --- | --- | ---
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 Liite H.

Here's a short explanation of the configuration directives.

unserialize_callback_func string

  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().

# Resource Types

T�m� laajennus ei m��rittele yht�k��n resurssityyppi�.

# Predefined Constants

T�m� laajennus ei m��rittele yht�k��n uutta vakiota.

Edellinen | Alkuun | Seuraava
urlencode | Ylös | debug_zval_dump