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# Predefined Classes

## Standard Defined Classes

These classes are defined in the standard set of functions included in the PHP build.

Directory

  The class from which dir is instantiated.

stdClass

__PHP_Incomplete_Class

## Predefined classes as of PHP 5

These additional predefined classes were introduced in PHP 5.0.0

exception

php_user_filter

## Ming Defined Classes

These classes are defined in the Ming extension, and will only be available when that extension has either been compiled into PHP or dynamically loaded at runtime.

swfshape

swffill

swfgradient

swfbitmap

swftext

swftextfield

swffont

swfdisplayitem

swfmovie

swfbutton

swfaction

swfmorph

swfsprite

## Oracle 8 Defined Classes

These classes are defined in the Oracle 8 extension, and will only be available when that extension has either been compiled into PHP or dynamically loaded at runtime.

OCI-Lob

OCI-Collection

## qtdom Defined Classes

These classes are defined in the qtdom extension, and will only be available when that extension has either been compiled into PHP or dynamically loaded at runtime.

QDomDocument

QDomNode

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