This section contains detail about Operators in PHP.

## Operators in PHP

Operator is used to perform operation on variable and values. PHP operators can be classified into the following categories :

• Arithmetic Operators
• Assignment Operators
• Comparison Operators
• Logical Operators

### Arithmetic Operators

 OPERATOR WORK USE RESULT + Addition y=3 y+3 6 - Subtraction y=3 5-y 2 / Division 21/3 7 % Modulus (division remainder) 10%8 2 ++ Increment y=3 y++ 4 * Multiplication y=3 y*3 9 -- Decrement y=5 y-- 4

### Assignment Operators

 OPERATOR USE EQUIVALENT TO = a=b a=b += a+=b a=a+b -= a-=b a=a-b *= a*=b a=a*b /= a/=b a=a/b .= a.=b a=a.b %= a%=b a=a%b

### Comparison Operators

 OPERATOR NAME 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 NAME EXAMPLE && And a=7 b=6 (a< 12 && b> 3) returns true || Or a=3 b=9 (x==4 || y==4) returns false ! Not x=3 y=4 !(x==y) returns true
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