PHP Data Types MCQs

PHP Data Types MCQs : This section focuses on "Data Types" 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. How many different data types are available in php?

A. 6
B. 7
C. 8
D. 9

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2. How many compound data types are available in php?

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

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3. Which one is not a data type in PHP?

A. Resources
B. Objects
C. Null
D. Void

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4. The range of integers must lie between ___________?

A. -2^15 to 2^15.
B. -2^16 to 2^16.
C. -2^31 to 2^31.
D. -2^32 to 2^32.

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5. How many value does Boolean data type hold?

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

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6. Objects are defined as instances of user defined classes that can hold ____________?

A. values
B. functions
C. both values and functions
D. None of the above

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

<?php 
  
if(TRUE) 
    echo "This condition is TRUE"; 
if(FALSE) 
    echo "This condition is not TRUE"; 
?>

A. This condition is TRUE
B. This condition is not TRUE
C. No Output
D. Error

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

<?php 
$lfc = NULL; 
echo $lfc; 
?>

A. 0
B. Null
C. No Output
D. Error

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

<?php 
$x1 = 10.58;  
$x2 = 21.18;  
  
$sum = $x1 + $x2; 
  
echo $sum; 
?>

A. 31
B. 32
C. 31.00
D. 31.76

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

<?php 
$intArray = array( 10, 20 , 30); 
  
echo "First Element: $intArray[3]
"; 
?>

A. First Element: 10
B. First Element: 20
C. First Element: 30
D. First Element:

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11. What is the data type of $TV in this Line 1?

<php

$tax=10.3;
$TV="10.3+$TV"; # Line 1

?>

A. Integer
B. String
C. Unknown
D. No Output

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12. What is the data type of $TV in the above code?

<php

$TV;
echo gettype($TV);

?>

A. Integer
B. String
C. Unknown
D. Null

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13. What will be the output of the following code?

<php

define('t',10.3);
$tax=t;
echo "t+$tax";


?>

A. 20.6
B. 10.3+10.3
C. t+10.3
D. t+$tax

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14. What is the data type of $Cost?

<php

$tax="17.5"
$Fridge=Whirlpool;
settype($Fridge,"string");
$Cost=$tax+$Fridge;
echo gettype($Cost);

?>

A. String
B. Integer
C. Null
D. Float

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15. What will be the output of the following code?

<php

PCmodel="DellInspirion3542";
settype($PCmodel,"integer");
echo $PCmodel;

?>

A. 0
B. 3542
C. DellInspirion3542
D. Error

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16. Select the true statements. Once a constant is defined:

A. The value cannot be changed, but the variable can be unset
B. Neither the value can be changed nor variable can be unset
C. The value can be changed, but it cannot be unset
D. The value can be changed and variable can be unset

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17. What is gettype() function do?

A. gettype() function returns the type of the variable
B. gettype() function is used to set type to variable
C. gettype() function is used to change type to variable
D. None of the above

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18. Constants, like variables, can hold _________.

A. integer
B. string
C. Both A and B
D. None of the above

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19. Ord ( ) function is used convert a ______.

A. Integer type into a string
B. Integer type into an array
C. Float type into an array
D. Array type into a string

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20. Which data type in PHP offers special variables that hold the references of resources that are external to PHP?

A. Array
B. Resources
C. object
D. string

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Also check :

PHP Class MCQ

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