<?php
$numbers = array(10, 20, 30, 40, 50);
echo count($numbers);
?
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
$numbers = array(10, 20, 30, 40, 50);
array_pop($numbers);
foreach ($numbers as $number) {
echo $number . ' ';
}
?
A). 20 30 40 50
B). 10 20 30 40
C). 10 20 30 40
D). 10 20 30 40 50
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 determine the number of elements in an array?
A). size()
B). count()
C). length()
D). elements()
What is the purpose of the array_push() function in PHP?
A). To remove elements from an array
B). To add elements to the beginning of an array
C). To add elements to the end of an array
D). To reverse the order of elements in an array
What will be the output of the following PHP code?<?php
$matrix = array(
array(1, 2, 3),
array(4, 5, 6),
array(7, 8, 9)
);
echo $matrix[1][2];
?
A). 1
B). 2
C). 4
D). 6
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 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 syntax for creating a multidimensional array in PHP?
A). $array = array(array(1, 2, 3), array(4, 5, 6), array(7, 8, 9));
B). $array = array([1, 2, 3], [4, 5, 6], [7, 8, 9]);
C). $array = array{1, 2, 3}, {4, 5, 6}, {7, 8, 9};
D). $array = array{{1, 2, 3}, {4, 5, 6}, {7, 8, 9}};
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