Arrays MCQ question and answer with solution | PHP Programming

<?php
$a = array("A", "Cat", "Dog", "A", "Dog");
print_r(array_count_values($a));
?>

<?php
$a1 = array("a"=>"red", "b"=>"green", "c"=>"blue", "d"=>"yellow");
$a2 = array("e"=>"red", "f"=>"green", "g"=>"blue");
$result = array_diff($a1, $a2);
print_r($result);
?>

<?php
$a1 = array("red", "green");
$a2 = array("blue", "yellow");
print_r(array_merge($a1, $a2));
?>

<?php
$a = array("a"=>"red", "b"=>"green", "c"=>"blue");
echo array_shift($a);
print_r ($a);
?>

<?php
$a = array("red", "green", "blue");
array_pop($a);
print_r($a);
?>

<?php
$fruits = array ("mango", "apple", "pear", "peach");
$fruits = array_flip($fruits);
echo ($fruits[0]);
?>

<?php
$fruits = array ("mango", "apple", "peach", "pear");
$fruits = asort ($fruits);
printr ($fruits);
?>

<?php
$arr = array ("picture1.JPG", "picture2.jpg", "Picture10.jpg", "picture20.jpg");
sort($arr);
print_r($arr);
?>

<?php
$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);
?>

<?php
$fruits = array ("apple", "mango", "peach", "pear", "orange");
$subset = array_slice ($fruits, 2);
print_r ($subset);
?>