PHP Variables MCQs

This section focuses on "Variable" in PHP. These Multiple Choice Questions (MCQ) should be practiced to improve the PHP skills required for various interviews (campus interview, walk-in interview, company interview), placements, entrance exams and other competitive examinations.

1. Any variables declared in PHP must begin with a _____?

A. .
B. #
C. &
D. $

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2. A variable can have ________?

A. long descriptive names
B. short names
C. Both A and B
D. None of the above

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3. A variable name can only contain ____________?

A. alphanumeric characters
B. underscores
C. Both A and B
D. None of the above

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4. Variable names in PHP must start with ?

A. letter
B. underscore
C. no numbers
D. All of the above

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5. PHP variables are case-sensitive?

A. True
B. False
C. For "sum" variable it is case-sensitive
D. None of the above

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6. How many variable scope are there in php?

A. 2
B. 3
C. 1
D. 4

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7. What will be the output of the following PHP code?

<?php
$x = 1;
$y = 2;
$z = "$x + $y";
echo "$z";
?<

A. $x + $y
B. 3
C. 1+2
D. 12

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8. What will be the output of the following PHP code?

<?php
$x = 3.3;
$y = 2;
echo $x % $y;
?>

A. 1.3
B. 1
C. 0
D. Error

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9. What will be the output of the following PHP code?

<?php
$a = 1;
$b = 2;
$c = 3;
echo ($a % ($b) + $c);
?>

A. 2
B. 3
C. 4
D. 5

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10. What will be the output of the following PHP code?

<?php
$a = 1;
$b = 2;
$c = 3;
echo ($a * (($b) - $c));
?>

A. 1
B. -1
C. 2
D. -2

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