PHP Arrays
What will be the output of the following PHP code?
$a = array("A", "Cat", "Dog", "A", "Dog");
print_r(array_count_values($a));

Array ( [A] => 2 [Cat] => 1 [Dog] => 1)
Array ( [A] => 1 [Cat] => 1 [Dog] => 2 )
Array ( [A] => 2 [Cat] => 1 [Dog] => 2 )
Array ( [A] => 2 [Cat] => 2 [Dog] => 1 )

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

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PHP Arrays
What will be the output of the following PHP code ?
$array = array("red", "green");
array_push($array, "blue", "yellow");
print_r($array);

Array ( [0] => red [1] => green [2] => blue [3] => yellow )
Array ( [0] => red [1] => green )
Array ( [0] => blue [1] => yellow [2] => red [3] => green )
Array ( [0] => blue [1] => yellow )

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