PHP Operators

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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 or x+2 4
- Subtraction x=2 or 5-x 3
* Multiplication x=4 or x*5 20
/ Division 15/5 or 5/2 3 or 2.5
% Modulus (division remainder) 5%2 or 10%8 or 10%2 1 or 2 or 0
++ Increment x=5 or x++ x=6
-- Decrement x=5 or 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 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