the following code snippet displays what for the resultant array php..., PHP Arrays, PHP

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Question:The following code snippet displays what for the resultant array?

<?php

$a = array(1 => 0, 3 => 2, 4 => 6);
$b = array(3 => 1, 4 => 3, 6 => 4);

print_r(array_intersect($a, $b));
?>

A 1 => 0 
B 1 => 3, 3 => 1, 4 => 3 
C 3 => 1, 3=> 2, 4 => 3, 4=> 6 
D 1 => 0, 3 => 2, 4 => 6 
E An empty Array

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Question:The following code snippet displays what for the resultant array? <?php $a = array(1 => 0, 3 => 2, 4 => 6); $b = array(3 => 1, 4 => 3, 6 => 4); print_r(array_intersect($a, $b)); ?>

A 1 => 0

B 1 => 3, 3 => 1, 4 => 3

C 3 => 1, 3=> 2, 4 => 3, 4=> 6

D 1 => 0, 3 => 2, 4 => 6

E An empty Array

E