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PHP Multiple Choice Interview Questions and Answers on Functions

Questions
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"
	?>
A Learn programming in PHP
B Learn programming in PHP with gkseries.com
C with gkseries.com
D None of the above

Answer: Option [B]
2 The function func_num_args() returns
A the number of arguments passed to the function
B the total length of the arguments
C the number of lines in the program
D the number of variables used in the program

Answer: Option [A]
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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;
	?>
A Learn Computer Engineering
B Visit gkseries.com and
C visit gkseries.com and Learn Computer Engineering
D Learn Computer Engineering visit gkseries.com and

Answer: Option [C]
4 get_loaded_extensions() returns
A returns an array with the names of all variables
B returns an array with the names of all modules compiled and loaded
C returns an array with the names of all modules keywords
D none of these above

Answer: Option [B]
5 In PHP programming the function get_extension_funcs()
A returns the number of variables used in a program
B returns the total number of functions used in a module
C returns an array with the names of the functions of a module
D none of these above

Answer: Option [C]

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