PHP ARRAYS QUIZ | EXAMIANS

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 )

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

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

TRUE ANSWER : ?
YOUR ANSWER : ?

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

1 => 'b'

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

It will output NULL

None

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

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

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

Array ( [0] => peach )

Array ( [0] => peach [1] => pear [2] => orange )

TRUE ANSWER : ?
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What will be the output of the following PHP code? $a = array("A", "Cat", "Dog", "A", "Dog"); print_r(array_count_values($a));

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

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

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

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

TRUE ANSWER : ?
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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;

78

NULL

5

19

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Which function will return true if a variable is an array or false if it is not?

is_array()

in_array()

do_array()

this_array()

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What function computes the difference of arrays?

diff_array

arrays_diff

diff_arrays

array_diff

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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.

String, Boolean

Even number, string

Integer, string

Positive number, negative number

Float, string

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What will be the output of the following PHP code? $cars = array("Volvo", "BMW", "Toyota"); echo "I like " . $cars[2] . ", " . $cars[1] . " and " . $cars[0] . ".";

I like Toyota, BMW and Volvo

I like Volvo, Toyota and BMW

I like BMW, Volvo and Toyota

I like Volvo, BMW and Toyota

TRUE ANSWER : ?
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What will be the output of the following PHP code? $array1 = array ("KA", "LA", "CA", "MA", "TA"); $array2 = array ("KA", "IA", "CA", "GA", "TA"); $inter = array_intersect ($array1, $array2); print_r ($inter);

Array ( [1] => LA [3] => MA )

Array ( [0] => KA [2] => CA [4] => TA )

Array ( [0] => KA [1] => LA [2] => CA [3] => MA [4] => TA [5] => IA [6] => GA )

Array ( [1] => IA [3] => GA )

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

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

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

Which function will return true if a variable is an array or false if it is not?

What function computes the difference of arrays?

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/>$cars = array("Volvo", "BMW", "Toyota");<br/>echo "I like " . $cars[2] . ", " . $cars[1] . " and " . $cars[0] . ".";

What will be the output of the following PHP code?<br/>$array1 = array ("KA", "LA", "CA", "MA", "TA");<br/>$array2 = array ("KA", "IA", "CA", "GA", "TA");<br/>$inter = array_intersect ($array1, $array2);<br/>print_r ($inter);