1. Which one of the following filter checks if variable of specified type exists?

1. 1. filter_id

   
   
   

   2. filter_var_array

   
   
   

   3. filter_has_var

   
   
   

   4. filter_var

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   filter_has_var

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2. If the input variable is a string like this “http://www.innnttteeerrrvvviiieeeewwwmaaanniiiiaaaa/”, the $url variable after the sanitizing will look like

1. 1. https://interviewmania.com/

   
   
   

   2. www.innnttteeerrrvvviiieeeewwwmaaanniiiiaaaa.com

   
   
   

   3. www.innnttterrrvvviewwwmaaanniiiiaaaa.com

   
   
   

   4. www.intterrrvvviewwmaaanniia.com

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   Sanitize is nothing but take away invalid characters so therefore the invalid characters like å and ø will be removed.

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3. Which one of the following does not describe a validating filter?

1. 1. Returns the expected type on success or FALSE on failure

   
   
   

   2. Are used to allow or disallow specific characters in a string

   
   
   

   3. Are used to validate user input

   
   
   

   4. Strict format rules

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   Are used to allow or disallow specific characters in a string

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4. Which one of the following filter is used to filter several variables with the same or different filters?

1. 1. filter_input_array

   
   
   

   2. filter_input

   
   
   

   3. filter_var()

   
   
   

   4. filter_var_array()

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   filter_var_array()

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5. How many types of filtering are present in PHP?

1. 1. 5

   
   
   

   2. 4

   
   
   

   3. 3

   
   
   

   4. 2

   
   
   

   5. 1

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

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

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