<?php
	
	class a
	{
		public $c= "hello rookienerd";
	}
	//create function with class name argument
	function display(a $a1)
	{
		//call variable
		echo $a1->c;
	}
	display(new a());
?>Output:
 
<?php
	
	class Test1
	{
		public $var= "hello rookienerd and SSSIT";
	}
	//create function with class name argument
	function typehint(Test1 $t1)
	{
		//call variable
		echo $t1->var;
	}
	//call function with call name as a argument
	typehint(new Test1());
?>Output:
 
