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Final Keyword

In PHP, Final keyword is applicable to only class and class methods. We cannot declare as Final in PHP.
So if we declare class method as a Final then that method cannot be override by the child class.
Same as method if we declare class as a Final then that class cannot be extended any more.

Example 1

<?php
	
	class base
	{
		final public function dis1()
		{
			echo "Base class..";
		}	
	}
	class derived extends base
	{
		public function dis1()
		{
			echo "derived class";
		}
	}
	$obj = new derived();
	$obj->dis1();

?>

Output:

Next TopicPHP OOPs Functions

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