PHP Multiple Choice Interview Questions and Answers on Functions

(1) What is the output of the following function ?

	<? php
	function gkseries $subject = "PHP")
	{
		return "Learn programming in $subject ";
	}
	gkseries $subject;
	echo "with gkseries.com"
	?>
	

(2) The function func_num_args() returns

(3) What is the output of the given function ?

	<? php
	function invite (&$students)
	{
		$students = 'Learn Computer Engineering';
	}
	$vst = 'Visit gkseries.com and';
	invite($vst);
	echo $vst;
	?>
          

(4) get_loaded_extensions() returns

(5) In PHP programming the function get_extension_funcs()