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PHP Subtracting Two Numbers Program - javatpoint

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Subtracting Two Numbers

There are three methods to subtract two numbers:

Subtraction in simple code in PHP
Subtraction in form in PHP
Subtraction without using arithmetic operator (+).

Subtraction in Simple Code

Subtraction of two numbers 30 and 15 is shown.

Example:

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

Output:

C++ vs Java

Subtraction in Form

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

Example:

<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>

Output:

Subtraction in Form without (-) Operator

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

Example:

<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;
?>

Output:

ORIGINAL Article

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