PHP Online Quiz

Following quiz provides Multiple Choice Questions (MCQs) related to PHP. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.

Q 1 - Using which of the following way can you embed PHP code in an HTML page?

A - <?php PHP code goes here ?>

B - <? PHP code goes here ?>

C - <script language="php"> PHP code goes here </script>

D - All of the above.

Answer : D

Explanation

All of the above options are correct.

Q 2 - Which of the following type of variables are special type that only has one value: NULL?

Answer : D

Explanation

NULL: is a special type that only has one value: NULL.

Q 3 - Which of the following is correct about determine the "truth" of any value not already of the Boolean type?

A - If the value is an array, it is false if it contains no other values, and it is true otherwise. For an object, containing a value means having a member variable that has been assigned a value.

B - Valid resources are true (although some functions that return resources when they are successful will return FALSE when unsuccessful).

C - Don't use double as Booleans.

D - All of the above.

Answer : D

Explanation

All of the above options are correct.

Q 4 - Which of the following operator is used to concatenate two strings?

A - .

B - +

C - append

D - None of the above.

Answer : A

Explanation

To concatenate two string variables together, use the dot (.) operator.

Q 5 - Which of the following variable is used for the PHP script name?

A - $_PHP_SELF

B - $SELF

C - $PHP

D - None of the above.

Answer : A

Explanation

The PHP default variable $_PHP_SELF is used for the PHP script name and when you click "submit" button then same PHP script will be called.

Q 6 - If there is any problem in loading a file then the include() function generates a warning but the script will continue execution.

A - true

B - false

Answer : A

Explanation

If there is any problem in loading a file then the include() function generates a warning but the script will continue execution.

Q 7 - Which of the following is used to set cookies?

A - setcookie() function

B - $_COOKIE variable

C - $HTTP_COOKIE_VARS variable

D - isset() function

Answer : A

Explanation

PHP provided setcookie() function to set a cookie.

Q 8 - Which of the following is an associative array containing session variables available to the current script?

Answer : D

Explanation

$_SESSION − An associative array containing session variables available to the current script.

Q 9 - Which of the following method of Exception class returns the code of exception when error occured?

Answer : B

Explanation

getCode() method of Exception class returns the code of exception.

Q 10 - Which of the following method acts as a constructor function in a PHP class?

A - class_name()

B - __construct

C - constructor

D - None of the above.

Answer : B

Explanation

PHP provides a special function called __construct() to define a constructor. You can pass as many as arguments you like into the constructor function.

php_questions_answers.htm