There are three methods to subtract two numbers:

Subtraction of two numbers 30 and 15 is shown.

Example:

<?php $x=30; $y=15; $z=$x-$y; echo "Difference: ",$z; ?>

Output:

By inserting values in the form two numbers can be subtracted.

<html> <body> <form method="post"> Enter First Number: <input type="number" name="number1" /><br><br> Enter Second Number: <input type="number" name="number2" /><br><br> <input type="submit" name="submit" value="Subtract"> </form> <?php if(isset($_POST['submit'])) { $number1 = $_POST['number1']; $number2 = $_POST['number2']; $sum = $number1-$number2; echo "The difference of $number1 and $number2 is: ".$sum; } ?> </body> </html>

By inserting values in the form two numbers can be subtracted but without using (-) operator.

<body> <form> Enter First Number: <input type="number" name="number1" /><br><br> Enter Second Number: <input type="number" name="number2" /><br><br> <input type="submit" name="submit" value="Subtract"> </form> </body> <?php @$number1=$_GET['number1']; @$number2=$_GET['number2']; for ($i=1; $i<=$number2; $i++) { $number1--; } echo "Difference=".$number1; ?>

total answers (1)

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## Subtraction in Simple Code

Subtraction of two numbers 30 and 15 is shown.

Example:

Output:

## Subtraction in Form

By inserting values in the form two numbers can be subtracted.

Example:

Output:

## Subtraction in Form without (-) Operator

By inserting values in the form two numbers can be subtracted but without using (-) operator.

Example:

Output:

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