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

Array ( [A] => 5 [Cat] => 2 [Dog] => 2 [Tiger] => 1 )
Array ( [A] => 2 [Cat] => 1 [Dog] => 4 [Tiger] => 1 )
Array ( [A] => 2 [Cat] => 2 [Dog] => 1 [Tiger] => 1 )
Array ( [A] => 6 [Cat] => 1 [Dog] => 2 [Tiger] => 1 )

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PHP Arrays
What will be the output of the following PHP code?
$a1 = array("red", "green");
$a2 = array("blue", "yellow");
print_r(array_merge($a1, $a2));

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

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

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