PHP ARRAYS QUIZ | EXAMIANS

What will be the output of the following PHP code? $fruits = array ("apple", "mango", "peach", "pear", "orange"); $subset = array_splice ($fruits, 2); print_r ($fruits);

Array ( [0] => pear [1] => orange )

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

Error

Array ( [0] => apple [1] => mango )

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What will be the output of the following PHP code ? $a1 = array("a" => "red", "b" => "green", "c" => "blue", "d" => "yellow"); $result = array_flip($a1); print_r($result);

Array ( [a] => red [b] => green [c] => blue [d] => yellow )

Array ( [red] => red [green] => green [blue] => blue [yellow] => yellow )

Array ( [a] => a [b] => b [c] => c [d] => d )

Array ( [red] => a [green] => b [blue] => c [yellow] => d )

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What will be the output of the following PHP code? $fruits = array ("apple", "orange", array ("pear", "mango"), "banana"); echo (count($fruits, 1));

3

4

5

6

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What will be the output of the following PHP code ? $city_west = array("NYC", "London"); $city_east = array("Mumbai", "Beijing"); print_r(array_replace($city_west, $city_east));

Array ( [0] => NYC [1] => London )

Array ( [1] => NYC [0] => London )

Array ( [1] => Mumbai [0] => Beijing )

Array ( [0] => Mumbai [1] => Beijing )

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What will be the output of the following PHP code ? $a = array(12, 5, 2); echo(array_product($a));

060

010

120

024

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What array will you get if you convert an object to an array?

An array with keys of that object as the array's elements

An array with properties of that object as the array's elements

An array with properties of that array as the object's elements

An array with properties of that object as the Key elements

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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);

None of the mentioned

Array ( [0] => LA [1] => Paris [2] => Paris )

Array ( [0] => NYC [1] => LA [2] => Paris [3] => Paris )

Array ( [0] => NYC [1] => LA [2] => Paris)

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What will be the output of the following PHP code? $a1 = array("red", "green"); $a2 = array("blue", "yellow"); $a3 = array_merge($a1, $a2); $a4 = array("a", "b", "c", "d"); $a = array_combine($a4, $a3); print_r($a);

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

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

Array ( [a] => blue [b] => yellow [c] => red [d] => green )

Array ( [a] => red [b] => green [c] => blue [d] => yellow )

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Absent any actual need for choosing one method over the other, does passing arrays by value to a read-only function reduce performance compared to passing them by reference?

Yes, because the interpreter must always create a copy of the array before passing it to the function.

Yes, because PHP must monitor the execution of the function to determine if changes are made to the array.

Yes, but only if the function modifies the contents of the array.

No

Yes, but only if the array is large.

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What will be the output of the following PHP code? $number = array ("4", "hello", 2); echo (array_sum ($number));

2

4hello2

4

6

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What will be the output of the following PHP code?<br/>$fruits = array ("apple", "mango", "peach", "pear", "orange");<br/>$subset = array_splice ($fruits, 2);<br/>print_r ($fruits);

What will be the output of the following PHP code ?<br/>$a1 = array("a" => "red", "b" => "green", "c" => "blue", "d" => "yellow");<br/>$result = array_flip($a1);<br/>print_r($result);

What will be the output of the following PHP code?<br/>$fruits = array ("apple", "orange", array ("pear", "mango"), "banana");<br/>echo (count($fruits, 1));

What will be the output of the following PHP code ?<br/>$city_west = array("NYC", "London");<br/>$city_east = array("Mumbai", "Beijing");<br/>print_r(array_replace($city_west, $city_east));

What will be the output of the following PHP code ?<br/>$a = array(12, 5, 2);<br/>echo(array_product($a));

What array will you get if you convert an object to an array?

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

What will be the output of the following PHP code?<br/>$a1 = array("red", "green");<br/>$a2 = array("blue", "yellow");<br/>$a3 = array_merge($a1, $a2);<br/>$a4 = array("a", "b", "c", "d");<br/>$a = array_combine($a4, $a3);<br/>print_r($a);

Absent any actual need for choosing one method over the other, does passing arrays by value to a read-only function reduce performance compared to passing them by reference?

What will be the output of the following PHP code?<br/>$number = array ("4", "hello", 2);<br/>echo (array_sum ($number));