{
        return $width * $height;
    }
    public function getPerimeter($width, $height)
    {
        return $width + $height;
    }
    public function isSquare()
    {
        return $this->width == $this->height;
    }
}
$width = 160;
$height = 75;
echo "<h2>With a width of {$width} and a height of {$height}...</h2>";
$r = new Rectangle($width, $height);
echo '<p>The area of the rectangle is ' . $r->getArea($width, $height) . '</p>';
echo '<p>The perimeter of the rectangle is ' . $r->getPerimeter($width, $height) . '</p>';
echo '<p>This rectangle is ';
if ($r->isSquare()) {
    echo 'also';
} else {
    echo 'not';
}
echo ' a square.</p>';
?>

</p>

</body>
</html>
示例#2
0
<?php

require_once __DIR__ . "/../vendor/autoload.php";
require_once __DIR__ . "/../src/Rectangle.php";
$app = new Silex\Application();
$app->get("/", function () {
    return "Home";
});
$app->get("/new_rectangle", function () {
    return "<!DOCTYPE html>\n        <html>\n        <head>\n            <link rel='stylesheet' href='https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/css/bootstrap.min.css'>\n            <title>Make a rectangle!</title>\n        </head>\n        <body>\n            <div class='container'>\n                <h1>Geometry Checker</h1>\n                <p>Enter the dimensions of your rectangle to see if it's a square.</p>\n                <form action='/view_rectangle'>\n                    <div class='form-group'>\n                      <label for='length'>Enter the length:</label>\n                      <input id='length' name='length' class='form-control' type='number'>\n                    </div>\n                    <div class='form-group'>\n                      <label for='width'>Enter the width:</label>\n                      <input id='width' name='width' class='form-control' type='number'>\n                    </div>\n                    <button type='submit' class='btn-success'>Create</button>\n                </form>\n            </div>\n        </body>\n        </html>";
});
$app->get("/view_rectangle", function () {
    $my_rectangle = new Rectangle($_GET['length'], $_GET['width']);
    $area = $my_rectangle->getArea();
    if ($my_rectangle->isSquare()) {
        return "<h1>Congratulations! You made a square! Its area is {$area}.</h1>\n                    <a href='/new_rectangle'>Back!</a>";
    } else {
        return "<h1>Sorry! This isn't a square. Its area is {$area}.</h1>\n            <a href='/new_rectangle'>Back!</a>";
    }
});
return $app;