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 is a correct way to assign a floating-point number to a variable in PHP?
A). $price = 10.99;
B). $price = '10.99';
C). $price = '10.99';
D). $price = 10;
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 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 will be the output of the following PHP code?<?php
$x = 10;
echo ++$x;
?>
A). 10
B). 11
C). 9
D). Error
Which of the following statements is true about PHP comments?
A). Comments are ignored by the PHP interpreter
B). Comments can only be single-line
C). Comments must start with /* and end with */
D). Comments are displayed on the webpage
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
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 10 % 3 in PHP?
A). 0
B). 1
C). 3
D). 10
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 PHP functions is used to find the length of an array?
A). count()
B). length()
C). size()
D). sizeof()