What will be the result of the expression 10 % 3 in PHP?

What is the purpose of the following PHP function?

strlen('Hello')

A). Returns the length of a string

B). Converts a string to lowercase

C). Checks if a string contains a substring

D). Returns the first occurrence of a substring in a string

Which of the following is a correct way to declare an array in PHP?

A). $colors = array('Red', 'Green', 'Blue');

B). $colors = 'Red, Green, Blue';

C). $colors = {'Red', 'Green', 'Blue'};

D). $colors = [Red, Green, Blue];

Which of the following PHP functions is used to convert a string to uppercase?

A). strtoupper()

B). ucwords()

C). strtolower()

D). ucfirst()

What is the purpose of the following PHP code?

<?php
$colors = array('Red', 'Green', 'Blue');
foreach ($colors as $color) {
echo $color . '
';
}
?>

A). To loop through an array and print each element

B). To check if a variable is an array

C). To reverse the elements of an array

D). To create a new array

Which of the following PHP functions is used to find the length of an array?

A). count()

B). length()

C). size()

D). sizeof()

Which of the following is a valid variable name in PHP?

A). $my_var

B). $my-var

C). $my var

D). my_var

What does the following PHP code output?

<?php
$x = '10';
$y = 20;
echo $x + $y;
?>

A). 30

B). 1020

C). Error

D). 102

Which of the following is a correct way to increment the value of a variable $count by 1 in PHP?

A). $count++;

B). $count += 1;

C). $count = $count + 1;

D). $count =+ 1;

What will be the result of the expression 'Hello' . ' World' in PHP?

A). 'Hello World'

B). 'Hello . World'

C). 'Hello + World'

D). 'Hello, World'

What will be the value of the variable $result after executing the following PHP code?

<?php
$x = 5;
$result = ($x > 10) ? 'Yes' : 'No';
?>

A). Yes

B). No

C). True

D). False