Answer & Solution
'The sum is: '
with the result of the addition of $x
and $y
. Therefore, the output will be 'The sum is: 15'
, as $x + $y
evaluates to 15
, which is then concatenated with the rest of the string.
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<?php
$x = 5;
$y = 10;
echo 'The sum is: ' . ($x + $y);
?>
'The sum is: '
with the result of the addition of $x
and $y
. Therefore, the output will be 'The sum is: 15'
, as $x + $y
evaluates to 15
, which is then concatenated with the rest of the string.
Which of the following PHP operators is used for concatenation of strings?
A). .
B). +
C). &&
D). *
What will be the result of the expression 10 % 3
in PHP?
A). 0
B). 1
C). 3
D). 10
Which of the following PHP functions is used to find the length of an array?
A). count()
B). length()
C). size()
D). sizeof()
What will be the output of the following PHP code?<?php
$x = 5;
echo $x--;
echo $x;
?>
A). 5 4
B). 5 5
C). 4 4
D). 4 5
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 output of the following PHP code?<?php
$name = 'John';
echo 'Hello, $name!';
?>
A). Hello, John!
B). Hello, $name!
C). Hello, !
D). Undefined variable: name
Which of the following PHP operators is used to compare whether two values are equal and of the same data type?
A). ===
B). ==
C). =
D). !=
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
What will be the output of the following PHP code?<?php
$x = 10;
$y = 5;
echo $x + $y;
?>
A). 15
B). 5
C). 10
D). Error
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