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 3 - Which of the following magic constant of PHP returns full path and filename of the file?

A - _LINE_

B - _FILE_

C - _FUNCTION_

D - _CLASS_

Answer : B

Explanation

_FILE_ − The full path and filename of the file. If used inside an include,the name of the included file is returned. Since PHP 4.0.2, _FILE_ always contains an absolute path whereas in older versions it contained relative path under some circumstances.

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 variable is used to generate random numbers using PHP?

A - srand()

B - rand()

C - random()

D - None of the above.

Answer : B

Explanation

The PHP rand() function is used to generate a random number. This function can generate numbers with-in a given range. The random number generator should be seeded to prevent a regular pattern of numbers being generated. This is achieved using the srand() function that specifiies the seed number as its argument.

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 check that a cookie is set or not?

A - getcookie() function

B - $_COOKIE variable

C - isset() function

D - None of the above.

Answer : C

Explanation

You can use isset() function to check if a cookie is set or not.

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 10 - Which of the following method returns current date and time?

A - time()

B - getdate()

C - date()

D - None of the above

Answer : A

Explanation

PHP's time() function gives you all the information that you need about the current date and time. It requires no arguments but returns an integer.

php_questions_answers.htm
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