PHP Function class_exists()

Syntax

class_exists ( $class_name [,$autoload] );

Definition and Usage

This function checks if the given class have been defined. Returns TRUE if class_name is a defined class, FALSE otherwise.

Paramters

Parameter	Description
class_name	Required. The class name.
autoload	Optional. Whether to call __autoload or not by default.

Return Value

Returns TRUE if class_name is a defined class, FALSE otherwise.

Example

Following is the usage of this function:

<?php if (class_exists('MyClass')) { $myclass = new MyClass(); } ?>