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

Array ( [HARRY] => 21 [RON] => 23 )
Array ( [HARRY] => 21 [RON] => 23 [MALFOY] => 21 )
Array ( [Harry] => 21 [Ron] => 23 )
Array ( [Harry] => 21 [Ron] => 23 [Malfoy] => 21 )

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PHP Arrays
What will be the output of the following PHP code?
$fruits = array ("apple", "mango", "peach", "pear", "orange");
$subset = array_slice ($fruits, 2);
print_r ($subset);

Array ( [0] => peach )
Array ( [0] => apple [1] => mango [2] => peach )
Array ( [0] => apple [1] => mango )
Array ( [0] => peach [1] => pear [2] => orange )

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PHP Arrays
What will be the output of the following PHP code?
$face = array ("A", "J", "Q", "K");
$number = array ("2","3","4", "5", "6", "7", "8", "9", "10");
$cards = array_merge ($face, $number);
print_r ($cards);

Array ( [0] => 2 [1] => 3 [2] => 4 [3] => 5 [4] => 6 [5] => 7 [6] => 8 [7] => 9 [8] => 10 [9] => A [10] => J [11] => Q [12] => K )
Error
Array ( [0] => A [1] => 2 [2] => J [3] => 3 [4] => Q [5] => 4 [6] => K [7] => 5 [8] => 6 [9] => 7 [10] => 8 [11] => 9 [12] => 10 )
Array ( [0] => A [1] => J [2] => Q [3] => K [4] => 2 [5] => 3 [6] => 4 [7] => 5 [8] => 6 [9] => 7 [10] => 8 [11] => 9 [12] => 10 )

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