PHP Multiple choice Questions and Answers-Arrays and Functions in PHP

1.	How many functions are used by PHP to convert between arrays and variables?
a.	1
b.	2
c.	3
d.	4

Answer: (b).2

2.	Which of them is an abstract data structure (ADT)?
a.	Stacks
b.	Functions
c.	Queues
d.	Both a and c

Answer: (d).Both a and c

3.	What does explode ( ) function do?
a.	Converts a string into integers
b.	Converts a string into arrays
c.	Finds the length of array
d.	Finds the length of string

Answer: (b).Converts a string into arrays

4.	Functions that returns a new array without disturbing their old arguments might be called as
a.	Destructive function
b.	Constructive function
c.	Nondestructive function
d.	Both a and c

Answer: (d).Both a and c

5.	Compact ( ) function is used to create an array from
a.	Variables
b.	Values
c.	Functions
d.	Both a and b

Answer: (d).Both a and b

6.	For changing arrays into strings, which function is used?
a.	exp ( )
b.	explode ( )
c.	implode ( )
d.	imp ( )

Answer: (c).implode ( )

7.	Array_flip ( ) function changes keys of an array into
a.	Integers
b.	Characters
c.	Boolean
d.	Values

Answer: (d).Values

8.	Shuffle ( ) function operates directly on its array arguments and changes it, that's why it is called
a.	Constructive Function
b.	Destructive function
c.	Array changing function
d.	None of them

Answer: (b).Destructive function

Answer: (c).First in Last Out

10.	Array_splice function is same as array_slice but it starts taking arguments from
a.	First argument
b.	Second argument
c.	Third argument
d.	Fourth argument

Answer: (d).Fourth argument