Quiz#2: PHP functions, data types and constructs

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Quiz#2: PHP functions, data types and constructs

Question 1
1. When using the POST method, variables are displayed in the URL.
True
False
10 points
Question 2
1. PHP allows you to send emails directly from a script.
True
False
10 points
Question 3
1. What is the professional way to add 1 to the $count variable?

$count++;

count++;

Add 1 to $count;

$count = $count plus one;
10 points
Question 4
1. Which of these variables has an illegal name?

$myvar

$myVar

$my_var

$my-var
10 points
Question 5
1. The ______ function returns the absolute value of a number.

absolute()

positive()

pos()

abs()
10 points
Question 6
1. The ______ function returns a formatted string according to the string format.

format();

stringf()

formatString()

sprintf()
10 points
Question 7
1. The ______ function returns a rounded value.

rountdit()

rvalue()

round()

roundNow()
10 points
Question 8
1. The ______ function returns the next highest integer value by rounding up.

round()

ceil()

floor()

next()
10 points
Question 9
1. The ______ function returns the next lowest integer value by rounding down.

round()

ceil()

floor()

next()
10 points
Question 10
1. The rand() function generates a random number.
True
False
10 points
Question 11
1. The ______ function returns a string with whitespace removed from the beginning and end of the string.

remove()

deleteWhiteSpace()

leftRightSideRemove()

trim()
10 points
Question 12
1. A ______ is a named location, whose contents can vary over time.

variable

constant

register

keyword
10 points
Question 13
1. The result of the following statement is ____?
echo 3 + 5 * 2 + 4;

20

24

3524

17
10 points
Question 14
1. A variable’s data type describes the kind of values it can hold, and the types of operations that can be performed on the variable.
True
False
10 points
Question 15
1. A variable’s name describes the kind of values it can hold, and the types of operations that can be performed on the variable.
True
False
10 points
Question 16
1. The PHP variable $a would be seen as a completely different variable from $A.
True
False
10 points
Question 17
1. When a program never ends because of a repeating flow of logic, this is referred to as a(n) __________.

infinite loop

for loop

do loop

never never loop
10 points
Question 18
1. The term for placing a structure within another structure is _________.

framing

embedding

looping

nesting
10 points
Question 19
1. How many states can a Boolean expression represent?

one of 256

one of 10

one of 2

one of 14.7 million
10 points
Question 20
1. Usually, you compare only variables that have the same _____.

name

size

type

value
10 points
Question 21
1. PHP code can be placed anywhere within the HTML markup.
True
False
10 points
Question 22
1. $cost = 45.87;
declares a ________ variable with a value of 45.87

boolean

integer

floating-point (double)

string
10 points
Question 23
1. $username = ‘puppy’;
declares a ________ variable with a value of puppy.

boolean

integer

floating-point

string
10 points
Question 24
1. The _______ method takes one argument – the name of the variable whose type will be returned.

gettype()

settype()

returntype()

vartype()
10 points
Question 25
1. A whole number, positive, negative or zero has a data type of

boolean

integer

floating-point

string
10 points
Question 26
1. The data type used for values that are either true or false is

boolean

integer

floating-point

string
10 points
Question 27
1. This data type includes a decimal part, even if that decimal part is zero such as 34.0

boolean

integer

floating-point(double)

string
10 points
Question 28
1. These reserved words are words that have special meaning in the PHP language.

keywords

private

taken

booked
10 points
Question 29
1. Assume
$number = 14;
echo ++$number;
results in a displayed value of

13

14

15

141
10 points
Question 30
1. Assume
$number = 14;
echo $number++;
results in a displayed value of

13

14

15

141
10 points