PHP ARRAYS QUIZ

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));

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

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

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

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

TRUE ANSWER : ?
YOUR ANSWER : ?

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] . ".";

Error

Sam is the brother of Bob and Jack

Sam is the brother of Bob and Bob)

Sam is the brother of Jack and Bob)

TRUE ANSWER : ?
YOUR ANSWER : ?

What will be the output of the following PHP code ?<br/>$a1 = array("a" => "red", "b" => "green", "c" => "blue", "d" => "yellow");<br/>$result = array_flip($a1);<br/>print_r($result);

Array ( [a] => a [b] => b [c] => c [d] => d )

Array ( [red] => red [green] => green [blue] => blue [yellow] => yellow )

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

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

TRUE ANSWER : ?
YOUR ANSWER : ?

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);

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

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

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

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

TRUE ANSWER : ?
YOUR ANSWER : ?

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);

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

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

Array ( [a] => red [b] => green [c] => blue [d] => yellow [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?<br/>$place = array("NYC", "LA", "Paris");<br/>array_pop($place);<br/>$place1 = array("Paris");<br/>$place = array_merge($place, $place1);<br/>print_r($place);

Array ( [0] => LA [1] => Paris [2] => Paris )

None of the mentioned

Array ( [0] => NYC [1] => LA [2] => Paris)

Array ( [0] => NYC [1] => LA [2] => Paris [3] => Paris )

TRUE ANSWER : ?
YOUR ANSWER : ?

Which in-built function will add a value to the end of an array?

into_array()

array_unshift()

array_push()

inend_array()

TRUE ANSWER : ?
YOUR ANSWER : ?

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

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

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

Array ( Peter Ben Joe )

Array ( 35 37 43 )

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following are correct ways of creating an array?<br/>1. state[0] = “karnataka”;<br/>2. $state[] = array(“karnataka”);<br/>3. $state[0] = “karnataka”;<br/>4. $state = array(“karnataka”);

3 and 4

2 and 3

2, 3 and 4

Only 1

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Option 3 and 4

Option 2 and 4

Option 1 and 4

Option 1 and 2

TRUE ANSWER : ?
YOUR ANSWER : ?

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