PHP Arrays
Which function will return true if a variable is an array or false if it is not?

this_array()
do_array()
is_array()
in_array()

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PHP Arrays
What will be the output of the following PHP code?
$a1 = array("a" => "red", "b" => "green", "c" => "blue", "d" => "yellow");
$a2 = array("e" => "red", "f" => "green", "g" => "blue", "h" => "orange");
$a3 = array("i" => "orange");
$a4 = array_combine($a2, $a3);
$result = array_diff($a4, $a2);
print_r($result);

Array ( [d] => yellow )
Array ( [d] => yellow [h] => orange )
Array ( [i] => orange )
Array ( [h] => orange )

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

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PHP Arrays
What will be the output of the following PHP code?
$array1 = array ("KA", "LA", "CA", "MA", "TA");
$array2 = array ("KA", "IA", "CA", "GA", "TA");
$inter = array_intersect ($array1, $array2);
print_r ($inter);

Array ( [0] => KA [1] => LA [2] => CA [3] => MA [4] => TA [5] => IA [6] => GA )
Array ( [1] => IA [3] => GA )
Array ( [1] => LA [3] => MA )
Array ( [0] => KA [2] => CA [4] => TA )

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PHP Arrays
What will be the output of the following PHP code?
$place = array("NYC", "LA", "Paris");
array_pop($place);
$place1 = array("Paris");
$place = array_merge($place, $place1);
print_r($place);

Array ( [0] => NYC [1] => LA [2] => Paris)
None of the mentioned
Array ( [0] => NYC [1] => LA [2] => Paris [3] => Paris )
Array ( [0] => LA [1] => Paris [2] => Paris )

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