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PHP | is_a() Function

PHP is_a() 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 is_a() Function.

The built-in PHP is_a() Function checks if the given object is of this class or has this class as one of its parents.


Following below is the syntax to use this function -

is_a ( $object, $class_name )

Parameter Details

Sr.NoParameter & Description


The tested object



The class name.

Return Value

It returns TRUE if the object is of this class or has this class as one of its parents, else it returns FALSE.


Try out the below example -

   if ($wid_fact instanceof WidgetFactory) {
      echo 'Yes, $wid_fact is a WidgetFactory';


When the above code is executed, it will produce the following result -

Yes, $WF is a WidgetFactory

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 the PHP is_subclass_of() Function.

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Thanks for reading and bye for now.

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