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

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

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

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

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

TRUE ANSWER : ?
YOUR ANSWER : ?

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 )

TRUE ANSWER : ?
YOUR ANSWER : ?

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

4hello2

2

4

6

TRUE ANSWER : ?
YOUR ANSWER : ?

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);

a

d

c

b

TRUE ANSWER : ?
YOUR ANSWER : ?

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

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

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

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

TRUE ANSWER : ?
YOUR ANSWER : ?

Which function returns an array consisting of associative key/value pairs?

array_count()

count()

array_count_values()

count_values()

TRUE ANSWER : ?
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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));

orangeorange

orangebanana

appleapple

appleorange

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] => blue [1] => yellow )

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

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

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

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", "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 ( [h] => orange )

Array ( [d] => yellow )

Array ( [i] => orange )

TRUE ANSWER : ?
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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.

Float, string

Integer, string

Positive number, negative number

Even number, string

String, Boolean

TRUE ANSWER : ?
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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/>$age = array("Peter"=>"35", "Ben"=>"37", "Joe"=>"43");<br/>print_r(array_change_key_case($age, CASE_UPPER));

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

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 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);

Which function returns an array consisting of associative key/value pairs?

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

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.