PHP ARRAYS QUIZ | EXAMIANS

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 [h] => orange )

Array ( [d] => yellow )

Array ( [h] => orange )

Array ( [i] => orange )

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What will be the output of the following PHP code? $cars = array("Volvo", "BMW", "Toyota", "Honda", "Mercedes", "Opel"); print_r(array_chunk($cars, 2));

Array ( [1] => Array ( [1] => Volvo [2] => BMW ) [2] => Array ( [1] => Toyota [2] => Honda ) [3] => Array ( [1] => Mercedes [2] => Opel ) )

Array ( [0] => Array ( [0] => Volvo [1] => BMW ) [1] => Array ( [0] => Toyota [1] => Honda ) [2] => Array ( [0] => Mercedes [1] => Opel ) )

Array ( [0] => Array ( [0] => Volvo [1] => Volvo ) [1] => Array ( [0] => BMW [1] => BMW ) [2] => Array ( [0] => Toyota [1] => Toyota ) )

Array ( [0] => Array ( [1] => Volvo [2] => BMW ) [1] => Array ( [1] => Toyota [2] => Honda ) [2] => Array ( [1] => Mercedes [2] => Opel ) )

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What will be the output of the following PHP code? $age = array("Peter"=>"35", "Ben"=>"37", "Joe"=>"43"); print_r(array_change_key_case($age, CASE_UPPER));

Array ( [Peter] => 35 [Ben] => 37 [Joe] => 43 )

Array ( [PETER] => 35 [BEN] => 37 [JOE] => 43 )

Array ( [peter] => 35 [ben] => 37 [joe] => 43 )

Array ( [PeTeR] => 35 [BeN] => 37 [Joe] => 43 )

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

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

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

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

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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"); $result = array_intersect($a1, $a2); print_r($result);

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

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

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

Array ( [e] => red [f] => green [g] => blue )

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What will be the output of the following PHP code ? $people = array("Peter", "Susan", "Edmund", "Lucy"); echo pos($people);

Edmund

Lucy

Susan

Peter

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

appleorange

orangebanana

orangeorange

appleapple

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What function computes the difference of arrays?

array_diff

diff_array

diff_arrays

arrays_diff

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What will be the output of the following PHP code? $state = array ("Karnataka", "Goa", "Tamil Nadu", "Andhra Pradesh"); echo (array_search ("Tamil Nadu", $state) );

2

1

False

True

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Assume you would like to sort an array in ascending order by value while preserving key associations. Which of the following PHP sorting functions would you use?

krsort()

asort()

usort()

sort()

ksort()

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What will be the output of the following PHP code?<br/>$cars = array("Volvo", "BMW", "Toyota", "Honda", "Mercedes", "Opel");<br/>print_r(array_chunk($cars, 2));

What will be the output of the following PHP code?<br/>$age = array("Peter"=>"35", "Ben"=>"37", "Joe"=>"43");<br/>print_r(array_change_key_case($age, CASE_UPPER));

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

What will be the output of the following PHP code ?<br/>$people = array("Peter", "Susan", "Edmund", "Lucy");<br/>echo pos($people);

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

What function computes the difference of arrays?

What will be the output of the following PHP code?<br/>$state = array ("Karnataka", "Goa", "Tamil Nadu", "Andhra Pradesh");<br/>echo (array_search ("Tamil Nadu", $state) );

Assume you would like to sort an array in ascending order by value while preserving key associations. Which of the following PHP sorting functions would you use?