Operators are used to operate
on values.
PHP Operators
This section lists the
different operators used in PHP.
Arithmetic Operators
Operator
|
Description
|
Example
|
Result
|
+
|
Addition
|
x=2
x+2 |
4
|
-
|
Subtraction
|
x=2
5-x |
3
|
*
|
Multiplication
|
x=4
x*5 |
20
|
/
|
Division
|
15/5
5/2 |
3
2.5 |
%
|
Modulus
(division remainder)
|
5%2
10%8 10%2 |
1
2 0 |
++
|
Increment
|
x=5
x++ |
x=6
|
--
|
Decrement
|
x=5
x-- |
x=4
|
Assignment Operators
Operator
|
Example
|
Is
The Same As
|
=
|
x=y
|
x=y
|
+=
|
x+=y
|
x=x+y
|
-=
|
x-=y
|
x=x-y
|
*=
|
x*=y
|
x=x*y
|
/=
|
x/=y
|
x=x/y
|
.=
|
x.=y
|
x=x.y
|
%=
|
x%=y
|
x=x%y
|
Comparison Operators
Operator
|
Description
|
Example
|
==
|
is
equal to
|
5==8
returns false
|
!=
|
is
not equal
|
5!=8
returns true
|
>
|
is
greater than
|
5>8
returns false
|
<
|
is
less than
|
5<8
returns true
|
>=
|
is
greater than or equal to
|
5>=8
returns false
|
<=
|
is
less than or equal to
|
5<=8
returns true
|
Logical Operators
Operator
|
Description
|
Example
|
&&
|
and
|
x=6
y=3 (x < 10 && y > 1) returns true |
||
|
or
|
x=6
y=3 (x==5 || y==5) returns false |
!
|
not
|
x=6
y=3 !(x==y) returns true |
