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Rewrite fuel calculator. #4

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Rewrite fuel calculator. #4

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4eea47c
MVC with PHP
eric2861994 Jan 2, 2015
d5a87d8
Standarized HTML
eric2861994 Jan 2, 2015
70a9f60
redesigned code
eric2861994 Jan 5, 2015
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14 changes: 14 additions & 0 deletions classes/average_fuel_controller.php
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Original file line number Diff line number Diff line change
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<?php
class Average_Fuel_Controller
{
private $model;

public function __construct($model) {
$this->model = $model;
}

public function calculate($fuel, $kilo) {
$this->model->calculate($fuel, $kilo);
}
}
?>
24 changes: 24 additions & 0 deletions classes/average_fuel_model.php
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<?php
class Average_Fuel_Model
{
private $enabled;
private $liter_per_100km;

public function __construct() {
$this->enabled = false;
}

public function calculate($fuel, $km) {
$this->liter_per_100km = $fuel*100/$km;
$this->enabled = true;
}

public function getResult() {
return $this->liter_per_100km;
}

public function isEnabled() {
return $this->enabled;
}
}
?>
42 changes: 42 additions & 0 deletions index.php
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<?php
require_once('classes/average_fuel_model.php');
require_once('classes/average_fuel_controller.php');

$model = new Average_Fuel_Model();
$controller = new Average_Fuel_Controller($model);

if (isset($_GET['fuel']) && isset($_GET['kilo'])) {
$controller->calculate($_GET['fuel'], $_GET['kilo']);
}
?>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<title>Fuel Calculator</title>
</head>

<body>

<h1>Liters per 100 kilometers calculator</h1>
<form method='get'>
<table>
<tr><td>Fuel (in liters)</td>
<td><input type='text' name='fuel'/></td></tr>
<tr><td>Journey Driven (in kilometers)</td>
<td><input type='text' name='kilo'/></td></tr>
</table>

<input type='reset'/>
<input type='submit' value='Calculate'/>
</form>

<?php
if ($model->isEnabled()) {
echo '<p>Average fuel consumption = ' . $model->getResult() .
' liters/100 kilometers</p>';
}
?>

</body></html>