Answer & Solution
$count++;
syntax is used to increment the value of a variable by 1 in PHP. It is equivalent to $count = $count + 1;
. Therefore, $count++;
is the correct way to increment the value of the variable $count
by 1.
$count
by 1 in PHP?
$count++;
syntax is used to increment the value of a variable by 1 in PHP. It is equivalent to $count = $count + 1;
. Therefore, $count++;
is the correct way to increment the value of the variable $count
by 1.
What does the following PHP code output?<?php
$x = '10';
$y = 20;
echo $x + $y;
?>
A). 30
B). 1020
C). Error
D). 102
What will be the output of the following PHP code?<?php
$x = 5;
$y = 10;
echo 'The sum is: ' . ($x + $y);
?>
A). The sum is: 15
B). The sum is: 5 + 10
C). The sum is: $x + $y
D). The sum is: 510
Which of the following PHP operators is used for concatenation of strings?
A). .
B). +
C). &&
D). *
Which of the following is a valid variable name in PHP?
A). $my_var
B). $my-var
C). $my var
D). my_var
What is the value of $x
after the following PHP code is executed?<?php
$x = 5;
$x += 3;
echo $x;
?>
A). 5
B). 8
C). 15
D). 3
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
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 convert a string to uppercase?
A). strtoupper()
B). ucwords()
C). strtolower()
D). ucfirst()
What will be the output of the following PHP code?<?php
$name = 'John';
echo 'Hello, $name!';
?>
A). Hello, John!
B). Hello, $name!
C). Hello, !
D). Undefined variable: name
What will be the result of the expression 'Hello' . ' World'
in PHP?
A). 'Hello World'
B). 'Hello . World'
C). 'Hello + World'
D). 'Hello, World'