Arithmetic Operators in php

Purpose

• Arithmetic operators in php are used to perform mathematical calculations on numbers in PHP.

Common Arithmetic Operators:

1. Addition (+): Adds two numbers together.
   • $result = 10 + 5; // $result will be 15
2. Subtraction (-): Subtracts the second number from the first.
   • $result = 10 – 5; // $result will be 5
3. Multiplication (*): Multiplies two numbers.
   • $result = 10 * 5; // $result will be 50
4. Division (/): Divides the first number by the second.
   • $result = 10 / 2; // $result will be 5
5. Modulus (%): Returns the remainder after division.
   • $result = 10 % 3; // $result will be 1
6. Exponentiation (**): Raises a number to the power of another.
   • $result = 2 ** 3; // $result will be 8 (2 raised to the power of 3)

Example:

<?php
$num1 = 10;
$num2 = 5;
$sum = $num1 + $num2; 
$difference = $num1 - $num2;
$product = $num1 * $num2;
$quotient = $num1 / $num2;
$remainder = $num1 % $num2;
$power = $num1 ** 2; // 10 raised to the power of 2
echo "Sum: " . $sum . "<br>"; 
echo "Difference: " . $difference . "<br>";
echo "Product: " . $product . "<br>";
echo "Quotient: " . $quotient . "<br>";
echo "Remainder: " . $remainder . "<br>";
echo "Power: " . $power . "<br>"; 
?>

This code will output:

Sum: 15
Difference: 5
Product: 50
Quotient: 2
Remainder: 0
Power: 100