Area of a Rectangle
Area of a rectangle is calculated by the mathematical formula,
(base * height) / 2 = Area
Logic:
- Take two variables.
- Multiply both of them.
Area of Rectangle in PHP
Program to calculate area of rectangle with length as 14 and width as 12 is shown.
<?php
$length = 14;
$width = 12;
echo "area of rectangle is $length * $width= " . ($length * $width) . "<br />";
?>
Output
Area of Rectangle with Form in PHP
Program to calculate area of rectangle by inserting values in the form is shown.
<html>
<body>
<form method = "post">
Width: <input type="number" name="width">
<br><br>
Length: <input type="number" name="length"> <br>
<input type = "submit" name = "submit" value="Calculate">
</form>
</body>
</html>
<?php
if(isset($_POST['submit']))
{
$width = $_POST['width'];
$length = $_POST['length'];
$area = $width*$length;
echo "The area of a rectangle with $width x $length is $area";
}
?>
Output
