1. What will be the output of the following PHP code ?
   

   <?php
   $Car = array("J" => "Jaguar", "L" => "Land Rover", "A" => "Audi", "M" => "Maseratti");
   echo array_search("Maseratti", $Car);
   ?>
   

1. 1. J

   
   
   

   2. L

   
   
   

   3. A

   
   
   

   4. M

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   The array_search() function searches for the element and returns the key of that element.

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2. What will be the output of the following PHP code ?
   

   <?php
   $Student = array("Ajit" => "23", "Rahul" => "22","Ats" => "23");
   array_pop($Student);
   print_r(array_change_key_case($Student, CASE_UPPER));
   ?>
   

1. 1. Error

   
   
   

   2. Array
      (
          [AJIT] => 23
      )
      

   
   
   

   3. Nothing

   
   
   

   4. Array
      (
          [AJIT] => 23
          [RAHUL] => 22
      )
      

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   The array_change_key_case() function changes all keys in an array to lowercase or uppercase and arry_pop() removes last element.

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3. What will be the output of the following PHP code ?
   

   <?php
   $Color = array("R" => "Red", "G" => "Green", "B" => "Blue", "Y" => "Yellow");
   $Result = array_flip($Color);
   print_r($Result);
   ?>
   

1. 1. Array
      (
          [Red] => R
          [Green] => G
          [Blue] => B
          [Yellow] => Y
      )
      

   
   
   

   2. Error

   
   
   

   3. Array
      (
          [Red] => R
          [Green] => G
      )
      

   
   
   

   4. Nothing

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   The array_flip() function flips/exchanges all keys with their associated values in an array.

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4. What will be the output of the following PHP code?
   

   <?php
   $Country = array("INDIA", "USA", "ENGLAND");
   array_pop($Country);
   $Country1 = array("ISRAEL");
   $Country = array_merge($Country, $Country1);
   print_r($Country);
   ?>
   

1. 1. Nothing

   
   
   

   2. Array
      (
          [0] => INDIA
          [1] => USA
          [2] => ISRAEL
      )
      

   
   
   

   3. Array
      (
          [0] => INDIA
      )
      

   
   
   

   4. Error

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   array_merge() and array_pop() yields that result.

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5. What will be the output of the following PHP code ?
   

   <?php
   $Student = array("Ajit", "Rahul", "Ats", "Aju");
   echo pos($Student);
   ?>
   

1. 1. Ajit

   
   
   

   2. Rahul

   
   
   

   3. Ats

   
   
   

   4. Aju

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   The pos() function returns the value of the current element in an array, and since no operation has been done, the current element is the first element.

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