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);

Error

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

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

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

TRUE ANSWER : ?
YOUR ANSWER : ?

What will be the output of the following PHP code ? $number = range(0, 5); print_r ($number);

Array ( [0] => 0 [5] => 5 )

Array ( [0] => 5 [1] => 5 [2] => 5 [3] => 5 [4] => 5 [5] => 5 )

Array ( [0] => 0 [1] => 1 [2] => 2 [3] => 3 [4] => 4 [5] => 5 )

Array ( [0] => 0 [1] => 0 [2] => 0 [3] => 0 [4] => 0 [5] => 0 )

TRUE ANSWER : ?
YOUR ANSWER : ?

What will be the output of the following PHP code ? $age = array("Harry" => "21", "Ron" => "23","Malfoy" => "21"); array_change_key_case($age, CASE_UPPER); array_pop($age); print_r($age);

Array ( [HARRY] => 21 [RON] => 23 [MALFOY] => 21 )

Array ( [Harry] => 21 [Ron] => 23 [Malfoy] => 21 )

Array ( [Harry] => 21 [Ron] => 23 )

Array ( [HARRY] => 21 [RON] => 23 )

TRUE ANSWER : ?
YOUR ANSWER : ?

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?

usort()

asort()

ksort()

sort()

krsort()

TRUE ANSWER : ?
YOUR ANSWER : ?

PHP’s numerically indexed array begin with position ______.

2

1

0

-1

TRUE ANSWER : ?
YOUR ANSWER : ?

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

060

010

120

024

TRUE ANSWER : ?
YOUR ANSWER : ?

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);

red

none of the mentioned

blue

green

TRUE ANSWER : ?
YOUR ANSWER : ?

What will the following script output? $array = array (1, 2, 3, 5, 8, 13, 21, 34, 55); $sum = 0; for ($i = 0; $i < 5; $i++) { $sum += $array[$array[$i]]; } echo $sum;

5

78

19

NULL

TRUE ANSWER : ?
YOUR ANSWER : ?

Array values are keyed by values (called indexed arrays) or using values (called associative arrays). Of course, these key methods can be combined as well.

Positive number, negative number

String, Boolean

Even number, string

Float, string

Integer, string

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Array ( [d] => yellow )

Array ( [c] => blue )

Array ( [a] => red )

Array ( [e] => yellow )

TRUE ANSWER : ?
YOUR ANSWER : ?

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/>$number = range(0, 5);<br/>print_r ($number);

What will be the output of the following PHP code ?<br/>$age = array("Harry" => "21", "Ron" => "23","Malfoy" => "21");<br/>array_change_key_case($age, CASE_UPPER);<br/>array_pop($age);<br/>print_r($age);

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?

PHP’s numerically indexed array begin with position ______.

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

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 the following script output?<br/>$array = array (1, 2, 3, 5, 8, 13, 21, 34, 55);<br/>$sum = 0;<br/>for ($i = 0; $i < 5; $i++) {<br/>$sum += $array[$array[$i]];<br/>}<br/>echo $sum;

Array values are keyed by values (called indexed arrays) or using values (called associative arrays). Of course, these key methods can be combined as well.

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/>$result = array_diff($a1, $a2);<br/>print_r($result);