Arithmetic Operators are used to Perform Arithmetic Operations on Numeric Values Such as addition, subtraction, multiplication and etc.
|+||Addition||$a+$b||Addition of $a and $b|
|-||Subtraction||$a-$b||Difference of $a and $b|
|*||Multiplication||$a*$b||Product of $a and $b|
|/||Division||$a/$b||Quotient of $a and $b|
|%||Modulus||$a%$b||Remainder of $a divided by $b|
|**||Exponentiation||$a**$b||Result of raising $a to the $b'th power (Introduced in PHP 5.6)|