Question 1

var_dump function is same as print_r function except it adds additional information about the data of each element.

Accepted Answer

True

Question 2

$fruit = array(“orange”,”apple”,”grape”,”banana”);
What is the value of index 2?

Accepted Answer

grape

Question 3

foreach($arr as ______)

Accepted Answer

$value

Question 4

Function can have a return value

Accepted Answer

True

Question 5

Array is used to aggregate a series of similar items together.

Accepted Answer

True

Question 6

$g = 200;
function a(){echo “5”;}
function b(){echo “4”;}
a();b();
what is the output of the code?

Accepted Answer

Error

Question 7

function is used to print the array structure.

Accepted Answer

print_r

Question 8

Sorts by a function

Accepted Answer

usort($array)

Question 9

Array can be used as ordinary array same as in C and C++ arrays.

Accepted Answer

True

Question 10

is a group of PHP statements that performs a specific task. Functions are designed to allow you to reuse the same code in different locations.

Accepted Answer

Functions

Question 11

is used to retain the values calls to the same function.

Accepted Answer

Static variables

Question 12

You use can functions in different ways.

Accepted Answer

True

Question 13

$s = “variable”;
function f(){
                global $s;
                echo “function called ”;
echo “$s”;
 }
f();
what is the output of the code?

Accepted Answer

function called variable

Question 14

PHP has a built-in function to perform operations

Accepted Answer

True

Question 15

Local Variables is one that declared outside a function and is available to all parts of the program.

Accepted Answer

False

Question 16

$t = 100;
function one(){
                echo “1000”;
}
one();
what is the value of the $t after execute the code?

Accepted Answer

100

Question 17

function disp(){
function disp2(){
        echo “hello”;
}
}
Disp();
disp2();

Accepted Answer

hello

Question 18

Array index is also known as Array Keys.

Accepted Answer

True

Question 19

Sorts by value in reverse order; assign new number as the keys

Accepted Answer

arsort($array)

Question 20

rsort(), arsort(), and krsort() functions are used to sort elements in the array in descending order.

Accepted Answer

True

Question 21

Each member of the array index references a corresponding value and can be a simple numerical reference to the value’s position in the series, or it could have some direct correlation to the value.

Accepted Answer

True

Question 22

$f = array(
'102' => "red",
'101' => "blue",
'100' => "yellow");
krsort($f);
print_r($f);
What is the output of the code?

Accepted Answer

Array ( [102] => red [101] => blue [100] => yellow )

Question 23

Sorts by value; assign new numbers as the keys

Accepted Answer

sort($array)

Question 24

To gain access to a variable that is outside from the function we use the global keyword.

Accepted Answer

True

Question 25

You can create your own function inside of a php code

Accepted Answer

True

Question 26

is one that declared outside a function and is available to all parts of the program.

Accepted Answer

Global variables

Question 27

function disp(){
function disp2(){
        echo “hello”;
}
}
disp();
disp2();

Accepted Answer

hello

Question 28

functions that are provided by the user of the program.

Accepted Answer

User defined function

Question 29

$a[]=”mango”;
$a[]=”apple”;
$a[]=”banana”;
Check the code if valid or invalid?

Accepted Answer

Invalid

Question 30

Functions can only have 1 parameter

Accepted Answer

False

Question 31

Functions is a group of PHP statements that performs a specific task.

Accepted Answer

True

Question 32

prints additional information about the size and type of the values it discovers

Accepted Answer

var_dump()

Question 33

$mo = array(“jan”,”feb”,”mar”); echo “

”;
var_dump ($mo);
echo “

”; Check the code if valid or invalid?

Accepted Answer

Invalid

Question 34

$mo = array(“jan”,”feb”,”mar”); echo “

”;
print_r ($mo);
echo “

”; Check the code if valid or invalid?

Accepted Answer

Invalid

Question 35

Functions can be user defined generally defined by the user of the program and predefined that are build in using libraries.

Accepted Answer

True

Question 36

$g = 200;
function a(){echo “5”;}
function b(){echo “4”;}
a();
what is the output of the code?

Accepted Answer

5

Question 37

asort() and arsort() used to sort elements by keys.

Accepted Answer

False

Question 38

What is the keyword use to gain access a variable that is outside of the function?

Accepted Answer

Global

Question 39

What do you call a function inside of a function

Accepted Answer

Nested function

Question 40

function keyword is used in PHP to declare a function.

Accepted Answer

True

Question 41

references a corresponding value.

Accepted Answer

Array index

Question 42

function a($a,$b){
return $a+$b;
}
echo a(6,5);
what is the value of $a?

Accepted Answer

6

Question 43

Using foreach statement you can display both the keys and value of each element in the array.

Accepted Answer

True

Question 44

Functions are limited to 1 per code only

Accepted Answer

False

Question 45

$fruit = array(“orange”,”apple”,”grape”,”banana”);
What is the value of index 1?

Accepted Answer

apple

Question 46

specify an array expression within a set of parenthesis following the foreach keyword.

Accepted Answer

False

Question 47

$g = 200;
function a(){echo “5”;}
function b(){echo “4”;}
ab();
what is the output of the code?

Accepted Answer

error

Question 48

Global Variables is declared inside a function and is only available within the function in which it is declared.

Accepted Answer

False

Question 49

$num=array(1,2,3,4,5);
foreach($num as $val){
                echo $val;
}
What is the output of the code?

Accepted Answer

12345

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