Module 2

Question 1

It is a symbol that specifies a particular action in an expression.

Answer 1

operator

Question 2

This operator is for object instantiation.

Answer 2

new

Question 3

This operator is for expression subgrouping.

Answer 3

( )

Question 4

This operator is for index enclosure.

Answer 4

[ ]

Question 5

This operator is for error suppression.

Answer 5

@

Question 6

This operator is for expression separation.

Answer 6

,

Question 7

It is a characteristic of an operator that specifies how operations of the same precedence are evaluated as they are executed.

Answer 7

Operator Associativity

Question 8

It is a characteristic of operators that determines the order in which they evaluate the operands surrounding them.

Answer 8

Operator Precedence

Question 9

Arithmetic Operators in PHP

Answer 9

+, -, *, /, %

Question 10

Assignment Operators in PHP

Answer 10

= | assignment
+= | add-ass
-= | sub-ass
*= | mult-ass
/= | div-ass
%= | mod-ass
.= | concat-ass

Question 11

What is the operator used to check if values are identical (i.e. same value and data type)

Answer 11

=== | ($a === $b)

Question 12

What is the escape sequence for carriage return.

Answer 12

\r

Question 13

What is the escape sequence for octal notation.

Answer 13

\ [0-7]{1,3}

Question 14

What is the escape sequence for hexadecimal notation.

Answer 14

\x[0-9A-Fa-f]{1,2}

Question 15

What are the looping statements in PHP?

Answer 15

for, while, and do-while

Question 16

What are the conditional statements in PHP?

Answer 16

if, elseif, else, and switch

Question 17

What is the alternative enclosure syntax for if statements?

Answer 17

{ = : and } = endif;

Question 18

This statement is placed within the code of a loop to cause the program to break out of the loop statement.

Answer 18

break

Question 19

This statement causes execution of the current loop iteration to end and commence at the beginning of the next iteration.

Answer 19

continue

Question 20

This statement is used to jump to the other section of the program to support labels.

Answer 20

goto

Question 21

What is the associativity of index enclosure | [ ]?

Answer 21

Right

Question 22

What is the associativity of !, ~, ++, – ?

Answer 22

Right

Question 23

What is the associativity of error suppression | @ ?

Answer 23

Right

Question 24

What is the associativity of /, *, % ?

Answer 24

Left

Question 25

What is the *associativity* of +, -, . ?

Answer 25

Left

Question 26

What is the *associativity* of <<, >> ?

Answer 26

Left

Question 27

What is the *associativity* of &, ^, | ?

Answer 27

Left

Question 28

What is the *associativity* of &&, || ?

Answer 28

Left

Question 29

What is the *associativity* of a ternary operator?

Answer 29

Right

Question 30

What is the *associativity* of an assignment operator?

Answer 30

Right

Question 31

What is the *associativity* of AND, OR, XOR ?

Answer 31

Left

Question 32

What is the *associativity* of "," ?

Answer 32

Left

Question 33

What is the *associativity* of new ?

Answer 33

NA

Question 34

What is the *associativity* of ( ) ?

Answer 34

NA

Question 35

What is the *associativity* of <, >, <=, >= ?

Answer 35

NA

Question 36

This operator is for *increments*.

Answer 36

++$a | $a++

Question 37

This operator is for *decrements*.

Answer 37

--$a | $a--

Question 38

Comparison Operators in PHP

Answer 38

<, >, <=, >=, ? :

Question 39

Logical Operators in PHP

Answer 39

&&, AND, ||, OR, !, NOT, XOR

Question 40

Equality Operators in PHP

Answer 40

==, !=, ===

Question 41

Bitwise Operators in PHP

Answer 41

&, |, ^, ~, <<, >>