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PHP | class_exists() Function

PHP class_exists() Function


Hello folks! welcome back to a new edition of our tutorial on PHP. In this tutorial guide, we are going to be studying about the PHP class_exists() Function.

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

Syntax

Following below is the syntax to use this function -

class_exists ( $class_name [,$autoload] );


Parameter Details

Sr.NoParameter & Description
1

class_name(Required)

The class name.

2

autoload(Optional)

Whether to call __autoload or not by default.


Return Value

This built-in PHP function returns true if the class_name is a defined class, otherwise it returns false.

Example

Try out the below example -

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


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

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