PHP Operators
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 |
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