PHP ARRAYS QUIZ | EXAMIANS

Which array function checks if the specified key exists in the array?

array_key_exists()

arrays_key_exists()

array_key_exist()

array_keys_exists()

TRUE ANSWER : ?
YOUR ANSWER : ?

There are three different kind of arrays:

Const array, Associative array, Multidimensional array

Numeric array, Associative array, Multidimensional array

Numeric array, String array, Multidimensional array

Numeric array, Associative array, Dimensional array

TRUE ANSWER : ?
YOUR ANSWER : ?

What function computes the difference of arrays?

diff_array

diff_arrays

array_diff

arrays_diff

TRUE ANSWER : ?
YOUR ANSWER : ?

What will be the output of the following PHP code? $names = array("Sam", "Bob", "Jack"); echo $names[0] . "is the brother of " . $names[1] . " and " . $names[1] . ".".$brother;

Sam is the brother of Bob and Bob) $brother

Error

Sam is the brother of Bob and Bob)

$brother

TRUE ANSWER : ?
YOUR ANSWER : ?

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

orangeorange

appleapple

appleorange

orangebanana

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Array ( 35 37 43 )

Array ( Peter Ben Joe )

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

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

TRUE ANSWER : ?
YOUR ANSWER : ?

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);

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

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

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

Error

TRUE ANSWER : ?
YOUR ANSWER : ?

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

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

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

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

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

NULL

78

19

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 4

Option 1 and 2

Option 3 and 4

TRUE ANSWER : ?
YOUR ANSWER : ?

Which array function checks if the specified key exists in the array?

There are three different kind of arrays:

What function computes the difference of arrays?

What will be the output of the following PHP code?<br/>$names = array("Sam", "Bob", "Jack");<br/>echo $names[0] . "is the brother of " . $names[1] . " and " . $names[1] . ".".$brother;

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/>$fname = array("Peter", "Ben", "Joe");<br/>$age = array("35", "37", "43");<br/>$c = array_combine($age, $fname);<br/>print_r($c);

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/>$city_west = array("NYC", "London");<br/>$city_east = array("Mumbai", "Beijing");<br/>print_r(array_replace($city_west, $city_east));

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;

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