What will be the output of the following PHP code ?

1.	What will be the output of the following PHP code ? "21", "Ron" => "23","Malfoy" => "21");array_change_key_case($age, CASE_UPPER);array_pop($age);print_r($age);?>
A.	rray ( [Harry] => 21 [Ron] => 23 [Malfoy] => 21 )
B.	rray ( [HARRY] => 21 [RON] => 23 [MALFOY] => 21 )
C.	rray ( [HARRY] => 21 [RON] => 23 )
D.	rray ( [Harry] => 21 [Ron] => 23 )
Answer» D. rray ( [Harry] => 21 [Ron] => 23 )

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What will be the output of the following PHP code ? "21", "Ron" => "23","Malfoy" => "21");array_change_key_case($age, CASE_UPPER);array_pop($age);print_r($age);?>

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