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 - Which of the following is true about php.ini file?

A - The PHP configuration file, php.ini, is the final and most immediate way to affect PHP's functionality.

B - The php.ini file is read each time PHP is initialized.

C - Both of the above.

D - None of the above.

Answer : C

Explanation

Both of the above options are correct.

Q 2 - Which of the following is correct about determine the "truth" of any value not already of the Boolean type?

A - If the value is a number, it is false if exactly equal to zero and true otherwise.

B - If the value is a string, it is false if the string is empty (has zero characters) or is the string "0", and is true otherwise.

C - Values of type NULL are always false.

D - All of the above.

Answer : D

Explanation

All of the above options are correct.

Q 3 - Which of the following is correct about constants vs variables in PHP?

A - Constants may be defined and accessed anywhere without regard to variable scoping rules.

B - Once the Constants have been set, may not be redefined or undefined.

C - Both of the above.

D - None of the above.

Answer : C

Explanation

Both of the above options are correct.

Q 4 - Which of the following function is used to get length of a string?

A - size()

B - strlen()

C - length

D - None of the above.

Answer : B

Explanation

The strlen() function is used to find the length of a string.

Q 5 - Which of the following function is used to get environment variables in PHP?

Answer : D

Explanation

PHP provides a function getenv() to access the value of all the environment variables.

Q 6 - Singly quoted strings are treated almost literally, whereas doubly quoted strings replace variables with their values as well as specially interpreting certain character sequences.

A - true

B - false

Answer : A

Explanation

Singly quoted strings are treated almost literally, whereas doubly quoted strings replace variables with their values as well as specially interpreting certain character sequences.

Q 7 - Which of the following is used to delete a cookie?

A - setcookie() function

B - $_COOKIE variable

C - isset() function

D - None of the above.

Answer : A

Explanation

To delete a cookie you should call setcookie() with the name argument only.

Q 8 - Which of the following is an array containing information such as headers, paths, and script locations?

Answer : B

Explanation

$_SERVER − This is an array containing information such as headers, paths, and script locations. The entries in this array are created by the web server. There is no guarantee that every web server will provide any of these. See next section for a complete list of all the SERVER variables.

Q 9 - Which of the following is correct about preg_match() function?

A - The preg_match() function searches a string specified by string for a string specified by pattern, returning true if the pattern is found, and false otherwise.

B - The preg_match() function searches throughout a string specified by pattern for a string specified by string. The search is not case sensitive.

C - The preg_match() function searches string for pattern, returning true if pattern exists, and false otherwise.

D - None of the above