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PHP Arrays Quiz
Question 1
What type of array uses numeric indexes starting from 0 in PHP?
- A
Associative Array
- B
Indexed Array
- C
Multidimensional Array
- D
Static Array
Question 2
Which type of PHP array uses named keys instead of numeric indexes?
- A
Indexed Array
- B
Static Array
- C
Associative Array
- D
Multidimensional Array
Question 3
What is a multidimensional array in PHP?
- A
An array containing only numeric values
- B
An array containing other arrays as elements
- C
An array that only stores strings
- D
An array with a fixed size
Question 4
Which PHP function adds elements to the end of an indexed array?
- A
array_unshift()
- B
array_push()
- C
array_pop()
- D
unset()
Question 5
How can you remove the last element from an indexed array?
- A
array_shift()
- B
array_pop()
- C
unset()
- D
array_unshift()
Question 6
How do you sort the array $numbers = [3, 1, 4, 1, 5]; in ascending order?
- A
sort($numbers);
- B
rsort($numbers);
- C
asort($numbers);
- D
ksort($numbers);
Question 7
How do you merge two arrays $array1 = [1, 2, 3]; and $array2 = [4, 5, 6];?
- A
$merged = $array1 + $array2;
- B
$merged = array_merge($array1, $array2);
- C
$merged = array_combine($array1, $array2);
- D
$merged = array_intersect($array1, $array2);
Question 8
How to count the number of elements in the array $numbers?
- A
length($numbers);
- B
array_size($numbers);
- C
count($numbers);
- D
total($numbers);
Question 9
What is the difference between array_shift() and array_pop()?
- A
array_shift()adds an element to start,array_pop()removes from the end - B
array_shift()removes first element,array_pop()removes last element - C
array_shift()removes thethelast element,array_pop()removes the first element - D
Both remove the last element
Question 10
How do you access the "name" element in the associative array $person = ["name" => "GFG", "age" => 30];?
- A
echo $person[1];
- B
echo $person["name"];
- C
echo $person["GFG"];
- D
echo $person["age"];
There are 10 questions to complete.
