App Dev (PHP-LAB)

Question 1

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

Answer 1

value

Question 2

Id the keyword used to declare a function

Answer 2

function

Question 3

Sorts by a function

Answer 3

usort($array)

Question 4

Array can be used as ordinary array same as in

Group of answer choices

Java

Ruby

C and C++

Python

Answer 4

Python

Question 5

$a[]=”mango”;
$a[]=”apple”;
$a[]=”banana”;

Check the code if valid or invalid?

Answer 5

INVALID

Question 6

You can create a function inside of a function (T/F)

Answer 6

TRUE

Question 7

$mo = array(“jan”,”feb”,”mar”);
echo “<pre>”;
print_r ($mo);
echo “</pre>”;

Check the code if valid or invalid?

Answer 7

INVALID

Question 8

Syntax for foreach

Answer 8

foreach($arr as $value){}

Question 9

param – is the formal parameters of the function. Parameter must follow the rule of naming dentifier. (T/F)

Answer 9

TRUE

Question 10

You can insert CCS code inside of a function (T/F)

Answer 10

FALSE

Question 11

PHP array does not need to declare how many elements that the array variable have. (T/F)

Answer 11

TRUE

Question 12

specify an array expression within a set of parenthesis following the foreach keyword. (T/F)

Answer 12

TRUE

Question 13

functions that are built-in into PHP to perform some standard operations

Answer 13

Predefined functions

Question 14

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

Answer 14

11

Question 15

$f = array(
‘102’ => “red”,
‘101’ => “blue”,
‘100’ => “yellow”);
ksort($f);
print_r($f);

What is the output of the code?

Answer 15

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

Question 16

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

Answer 16

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

Question 17

var_dump function is same as print_r function except it adds additional information about the data of each element. (T/F)

Answer 17

TRUE

Question 18

ksort() and krsort() used to sort elements by values. (T/F)

Answer 18

FALSE

Question 19

What do you call a function inside of a function

Answer 19

NESTED FUNCTION

Question 20

Functions are limited to 1 per code only (T/F)

13(now 15)/20 ^^

Answer 20

FALSE

Question 21

We use static keyword to declare a variable inside a function that will act as accumulator variable this will let the program remember the last value of the variable that was used. (T/F)

Answer 21

TRUE

Question 22

Sorts by value; keeps the same key

Answer 22

asort($array)

Question 23

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

Answer 23

ERROR

Question 24

Function can be put anywhere of the code (T/F)

Answer 24

TRUE

Question 25

You can create your own function inside of a php code (T/F)

Answer 25

TRUE

Question 26

foreach(____ as $value)

Answer 26

$arr

Question 27

functions that are provided by the user of the program.

Answer 27

USER DEFINED FUNCTION

Question 28

sort() and rsort() does not maintain its index reference for each values. (T/F)

Answer 28

TRUE

Question 29

Array can be used as ordinary array same as in C and C++ arrays. (T/F)

Answer 29

TRUE

Question 30

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

Answer 30

GLOBAL

Question 31

Global Variables is declared inside a function and is only available within the function in which it is declared. (T/F)

Answer 31

FALSE

Question 32

$fruit = array(“orange”,”apple”,”grape”,”banana”);
What is the value of index 3?

Answer 32

BANANA

Question 33

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

Answer 33

APPLE