PHP | class_exists() Function

Hello dear readers! welcome back to another edition of our tutorial on PHP. In this tutorial guide, we are going to be discussing about the PHP class_exists() Function.

The built-in class_exists() function checks whether the given class have been defined. It returns TRUE if class_name is a defined class, otherwise FALSE.

Syntax

Following below is the syntax to use this function -

class_exists ( $class_name [,$autoload] );

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Parameter Details

Sr.No	Parameter & Description
1	class_name(Required) The class name.
2	autoload(Optional) Whether to call __autoload or not by default.

Return Value

This PHP function returns TRUE if the class_name is a defined class, otherwise FALSE.

Example

Try out the below example -

<?php
   if (class_exists('HelloWorld')) {
      $helloworld = new HelloWorld();
   }
?> 

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Alright guys! This is where we are rounding up for this tutorial post. In our next tutorial guide, we are going to be discussing about PHP get_class_methods Functions.

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