Overview

In this tutorial, we will learn about PHP arithmetic operators. The arithmetic operators are as follows:

• Addition (+)
• Subtraction (-)
• Multiplication (*)
• Division (/)
• Modulus (%)

Table

Arithmetic Operator	Operation	Example	Expression Result
+	Addition	4 + 5	9
–	Subtraction	16 – 9	7
*	Multiplication	12 * 3	36
/	Division	30 / 6	5
%	Modulus	18 % 5	3

Example

Example PHP Program to show the operators in action.

<?php

// declare two variables a and b

$a = 11;
$b = 3;

//Perform operations

$sum = $a + $b;
$diff = $a – $b;
$product = $a * $b;
$div = $a / $b;
$mod = $a % $b;

//Output

echo “Addition is “.$sum;
echo “<br>”;
echo “Subtraction is “.$diff;
echo “<br>”;
echo “Multiplication is “.$product;
echo “<br>”;
echo “Division is “.$div;
echo “<br>”;
echo “Remainder is “.$mod;

?>

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