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PHP Multiple Choice Interview Questions and Answers on Functions

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PHP Programming Language Interview Questions with Answers for Web Developer, Software Engineer Jobs
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(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

Comment

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

Comment

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

Comment

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

Comment

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

Comment

Answer: Option [C]

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