PHP | interface_exists() Function

PHP interface_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 interface_exists() Function.

PHP interface_exists() Function checks if the given interface has been defined.


Following below is the syntax to use this function -

interface_exists ( $interface_name [, $autoload] );

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Parameter Details

Sr.NoParameter & Description


The interface name



Wether to call __autoload or not by default.

Return Value

It returns TRUE if the interface given by the interface_name has been defined, otherwise FALSE.


Try out the below example -

   if (interface_exists('SomeInterface')) {
      class MyClass implements SomeInterface {
         // Methods

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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 the PHP is_a() Function.

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