PHP ARRAYS QUIZ | EXAMIANS

What will be the output of the following PHP code? $a=array("A","Cat","Dog","A","Dog"); $b=array("A","A","Cat","A","Tiger"); $c=array_combine($a,$b); print_r(array_count_values($c));

Array ( [A] => 6 [Cat] => 1 [Dog] => 2 [Tiger] => 1 )

Array ( [A] => 2 [Cat] => 2 [Dog] => 1 [Tiger] => 1 )

Array ( [A] => 2 [Cat] => 1 [Dog] => 4 [Tiger] => 1 )

Array ( [A] => 5 [Cat] => 2 [Dog] => 2 [Tiger] => 1 )

TRUE ANSWER : ?
YOUR ANSWER : ?

What will be the output of the following PHP code ? $array = array("red", "green"); array_push($array, "blue", "yellow"); print_r($array);

Array ( [0] => red [1] => green )

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

Array ( [0] => blue [1] => yellow )

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

TRUE ANSWER : ?
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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 ( [0] => Array ( [0] => Volvo [1] => Volvo ) [1] => Array ( [0] => BMW [1] => BMW ) [2] => Array ( [0] => Toyota [1] => Toyota ) )

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

TRUE ANSWER : ?
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What will be the output of the following PHP code? $a = array("a"=>"red", "b"=>"green", "c"=>"blue"); echo array_shift($a); print_r ($a);

blue

green

red

none of the mentioned

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What will be the output of the following PHP code ? $a = array("a" => "Jaguar", "b" => "Land Rover", "c" => "Audi", "d" => "Maseratti"); echo array_search("Audi", $a);

c

d

b

a

TRUE ANSWER : ?
YOUR ANSWER : ?

What elements will the following script output? $array = array (true => 'a', 1 => 'b'); var_dump ($array);

True => 'a', 1 => 'b'

It will output NULL

None

1 => 'b'

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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?

asort()

krsort()

usort()

ksort()

sort()

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What will be the output of the following PHP code? $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);

Array ( [0] => 2 [1] => 3 [2] => 4 [3] => 5 [4] => 6 [5] => 7 [6] => 8 [7] => 9 [8] => 10 [9] => A [10] => J [11] => Q [12] => K )

Array ( [0] => A [1] => 2 [2] => J [3] => 3 [4] => Q [5] => 4 [6] => K [7] => 5 [8] => 6 [9] => 7 [10] => 8 [11] => 9 [12] => 10 )

Error

Array ( [0] => A [1] => J [2] => Q [3] => K [4] => 2 [5] => 3 [6] => 4 [7] => 5 [8] => 6 [9] => 7 [10] => 8 [11] => 9 [12] => 10 )

TRUE ANSWER : ?
YOUR ANSWER : ?

What will be the output of the following PHP code? $arr = array ("picture1.JPG", "picture2.jpg", "Picture10.jpg", "picture20.jpg"); sort($arr); print_r($arr);

Array ( [0] => Picture10.jpg [1] => picture1.JPG [2] => picture20.jpg [3] => picture2.jpg )

Array ( [0] => Picture10.jpg [1] => picture1.JPG [2] => picture2.jpg [3] => picture20.jpg )

Array ( [0] => picture1.JPG [1] => Picture10.jpg [2] => picture2.jpg [3] => picture20.jpg )

Array ( [0] => picture1.JPG [1] => picture2.jpg [2] => Picture10.jpg [3] => picture20.jpg )

TRUE ANSWER : ?
YOUR ANSWER : ?

What functions count elements in an array? 1. count 2. Sizeof 3. Array_Count 4. Count_array

Option 2 and 4

Option 1 and 2

Option 3 and 4

Option 1 and 4

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What will be the output of the following PHP code?<br/>$a=array("A","Cat","Dog","A","Dog");<br/>$b=array("A","A","Cat","A","Tiger");<br/>$c=array_combine($a,$b);<br/>print_r(array_count_values($c));

What will be the output of the following PHP code ?<br/>$array = array("red", "green");<br/>array_push($array, "blue", "yellow");<br/>print_r($array);

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

What will be the output of the following PHP code ?<br/>$a = array("a" => "Jaguar", "b" => "Land Rover", "c" => "Audi", "d" => "Maseratti");<br/>echo array_search("Audi", $a);

What elements will the following script output?<br/>$array = array (true => 'a', 1 => 'b');<br/>var_dump ($array);

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?

What will be the output of the following PHP code?<br/>$face = array ("A", "J", "Q", "K");<br/>$number = array ("2","3","4", "5", "6", "7", "8", "9", "10");<br/>$cards = array_merge ($face, $number);<br/>print_r ($cards);

What will be the output of the following PHP code?<br/>$arr = array ("picture1.JPG", "picture2.jpg", "Picture10.jpg", "picture20.jpg");<br/>sort($arr);<br/>print_r($arr);

What functions count elements in an array?<br/>1. count<br/>2. Sizeof<br/>3. Array_Count<br/>4. Count_array