<?php
$numbers = array(10, 20, 30, 40, 50);
echo count($numbers);
?
Which PHP function is used to determine the number of elements in an array?
A). size()
B). count()
C). length()
D). elements()
Which PHP function is used to merge two or more arrays into a single array?
A). merge()
B). combine()
C). concat()
D). array_merge()
Which PHP function is used to remove the last element from an array?
A). remove()
B). pop()
C). delete()
D). unset()
What will be the output of the following PHP code?<?php
$person = array('name' => 'John', 'age' => 30, 'city' => 'New York');
echo $person['age'];
?
A). name: John
B). age: 30
C). city: New York
D). John
What will be the output of the following PHP code?<?php
$arr = array(10, 20, 30, 40, 50);
$slice = array_slice($arr, 2);
foreach ($slice as $item) {
echo $item . ' ';
}
?
A). 10 20 30 40 50
B). 10 20
C). 30 40 50
D). 30 40 50
Which PHP function is used to extract a slice of an array?
A). splice()
B). slice()
C). extract()
D). split()
Which PHP function is used to sort an array in ascending order, maintaining the key-value pairs?
A). sort()
B). ksort()
C). asort()
D). rsort()
What will be the output of the following PHP code?<?php
$arr1 = array('a', 'b', 'c');
$arr2 = array(1, 2, 3);
$result = array_merge($arr1, $arr2);
foreach ($result as $item) {
echo $item . ' ';
}
?
A). a b c 1 2 3
B). 1 2 3 a b c
C). a b c
D). 1 2 3
What type of index do indexed arrays in PHP use?
A). String
B). Integer
C). Key-value pairs
D). Floating-point number
What is the correct way to access the first element of an indexed array in PHP?
A). $array[0]
B). $array[1]
C). $array['first']
D). $array['0']