Php Filter - Practice Test

[#1] Which of the following is/are an external data? 1. Cookies 2. Input data from a form 3. Server Variables 4. Web services data

(A) Only 2

(B) 2 and 3

(C) None of the mentioned

(D) All of the mentioned

Correct Answer

(D) All of the mentioned

[#2] How many types of filtering are present in PHP?

(A) 3

(B) 2

(C) 4

(D) None

Correct Answer

(B) 2

Explanation

Solution: There are two main types of filtering: validation and sanitization.

[#3] Which one of the following filter is used to filter several variables with the same or different filters?

(A) filter_var_array()

(B) filter_var()

(C) filter_input

(D) filter_input_array

Correct Answer

(A) filter_var_array()

[#4] Which one of the following does not describe a validating filter?

(A) Are used to allow or disallow specified characters in a string

(B) Are used to validate user input

(C) Strict format rules

(D) Returns the expected type on success or FALSE on failure

Correct Answer

(A) Are used to allow or disallow specified characters in a string

Explanation

Solution: Option a) describes Sanitizing filters.

[#5] Which one of the following filter checks if variable of specified type exists?

(A) filter_has_var

(B) filter_var

(C) filter_id

(D) filter_var_array

Correct Answer

(A) filter_has_var

Php Filter - Study Mode

[#1] Which of the following is/are an external data? 1. Cookies 2. Input data from a form 3. Server Variables 4. Web services data

Correct Answer

[#2] How many types of filtering are present in PHP?

Correct Answer

Explanation

[#3] Which one of the following filter is used to filter several variables with the same or different filters?

Correct Answer

[#4] Which one of the following does not describe a validating filter?

Correct Answer

Explanation

[#5] Which one of the following filter checks if variable of specified type exists?

Correct Answer