PHP arithmetic operator are used to integer (numeric) value to perform basic operation like sum, multiplication, subtraction and division.
PHP Supports all basic arithmetic operators :
- Add +
- Subtract –
- Multiply *
- Division /
- Modulus %
lets understand use of arithmetic operator with an example in php.
we already know what is variable and how to assign value in to variable.
ADD (+) arithmetic operator
First we take an example of addition of two numeric value in php.
here, we have declare two variable with integer value.
<?php
$first = 5;
$second = 2;$sum = $first + $second;
echo “sum = ” . $sum;?>
The output of example:
sum = 7
In above php addition example we have two variable $first and $second with numeric value 5 and 2 respectively.
The $sum variable store the addition output of two variable $first and $second and then print answer of addition.
Subtraction (-) arithmetic operator
Now, subtraction of two numeric value, just change the arithmetic operation minus (-) sign instead of plus (+) sign in above php example.
<?php
$first = 5;
$second = 2;$sub = $first – $second;
echo “subtraction = ” . $sub;?>
The output is:
subtraction = 3;
We can make all arithmetic operation such as multiplication, division just change the operator sign in above example.
Multiplication (*) php example
<?php
$first = 5;
$second = 2;$mul = $first * $second;
echo “mul = ” . $mul;?>
The output is:
mul = 10;
Division (/) operator php example
<?php
$first = 10;
$second = 2;$div = $first / $second;
echo “div = ” . $div;?>
The output is:
div = 5;