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.

Questions and Answers

Q 2 - Which of the following type of variables are instances of programmer-defined classes?

A - Strings

B - Arrays

C - Objects

D - Resources

Answer : C

Explanation

Objects: are instances of programmer-defined classes, which can package up both other kinds of values and functions that are specific to the class.

Q 3 - Which of the following magic constant of PHP returns current line number of the file?

A - _LINE_

B - _FILE_

C - _FUNCTION_

D - _CLASS_

Answer : A

Explanation

_LINE_ − The current line number of the file.

Q 4 - Which of the following function is used to locate a string within a string?

A - search()

B - locate()

C - strpos()

D - None of the above.

Answer : C

Explanation

The strpos() function is used to search for a string or character within a string.

Q 5 - Which of the following can be used to get information sent via get/post method in PHP?

A - $_REQUEST

B - $REQUEST

C - $REQUEST_PAGE

D - None of the above.

Answer : A

Explanation

The PHP $_REQUEST variable can be used to get the result from form data sent with both the GET and POST methods.

Q 6 - Which of the following function checks if a specified value exists in an array?

A - extract()

B - in_array()

C - key()

D - krsort()

Answer : B

Explanation

in_array() − Checks if a specified value exists in an array.

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

A - getcookie() function

B - $_COOKIE variable

C - isset() function

D - None of the above.

Answer : B

Explanation

PHP provides many ways to access cookies. Simplest way is to use either $_COOKIE or $HTTP_COOKIE_VARS variables.

Q 8 - Which of the following provides access to the uploaded file in the temporary directory on the web server?

A - $_FILES['file']['tmp_name']

B - $_FILES['file']['name']

C - $_FILES['file']['size']

D - $_FILES['file']['type']

Answer : A

Explanation

$_FILES['file']['tmp_name'] − it provides access to the uploaded file in the temporary directory on the web server.

Q 9 - Which of the following gives a string containing PHP script file name in which it is called?

A - $_PHP_SELF

B - $php_errormsg

C - $_COOKIE

D - $_SESSION

Answer : A

Explanation

$_PHP_SELF − A string containing PHP script file name in which it is called.

Q 10 - Can you create a class in PHP?

A - true

B - false

Answer : A

Explanation

Yes! class can be created in PHP.

php_questions_answers.htm
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