GromNaN/composer.json

## composer.json
{
    "name": "jerometamarelle/redirect",
    "require": {
        "silex/silex": "dev-master"
    },
    "authors": [
        {
            "name": "Jérôme Tamarelle",
            "email": "jerome@tamarelle.net"
        }
    ]
}

## index.php
<?php

require __DIR__.'/vendor/.composer/autoload.php';

use Silex\Application;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpFoundation\RedirectResponse;

$app = new Application();

$app->get('/', function() {
    $html = <<<HTML
<html>
    <body>
        <h1>Compare HTTP redirection codes by yourself</h1>
        <form action="redirect" method="POST">
            <h3>POST</h3>
            <input type="text" name="value" value="original" />
            <input type="submit" value="301" name="code" />
            <input type="submit" value="302" name="code" />
            <input type="submit" value="303" name="code" />
            <input type="submit" value="307" name="code" />
        </form>
        <form action="redirect" method="GET">
            <h3>GET</h3>
            <input type="text" name="value" value="original" />
            <input type="submit" value="301" name="code" />
            <input type="submit" value="302" name="code" />
            <input type="submit" value="303" name="code" />
            <input type="submit" value="307" name="code" />
        </form>
        <p>Source code on <a href="https://gist.github.com/2047633" title="Gist 2047633">GitHub</a>, by <a href="http://twitter.com/GromNaN">GromNaN</a></p>
    </body>
</html>
HTML;
    return new Response($html);
});

$app->match('/redirect', function () use ($app) {
    $code = $app['request']->get('code');
    $url  = 'end?x=' . microtime(true);
    $response = new RedirectResponse($url, $code);
    $response->setCache(array('max_age' => 3600));
    return $response;
});

$app->match('/end', function () use ($app) {
    $html = <<<HTML
<html>
    <body>
        <ul>
            <li>HTTP Method: {{ method }}</li>
            <li>POST value: {{ value }}</li>
            <li>Redirection page cached: {{ cache }} (invalid the first time)</li>
        </ul>
        <p><a href="./">Return to the previous page</a>, by <a href="http://twitter.com/GromNaN">GromNaN</a></p>
    <body>
</html>
HTML;
    return new Response(strtr($html, array(
        '{{ method }}' => $app['request']->getMethod(),
        '{{ value }}'  => $app['request']->request->get('value') ?: '&ndash;',
        '{{ cache }}'  => ((float) $app['request']->query->get('x') < microtime(true) - 0.2) ? 'Yes' : 'No',
    )));
});

$app->run();
	{
	"name": "jerometamarelle/redirect",
	"require": {
	"silex/silex": "dev-master"
	},
	"authors": [
	{
	"name": "Jérôme Tamarelle",
	"email": "jerome@tamarelle.net"
	}
	]
	}
	<?php

	require __DIR__.'/vendor/.composer/autoload.php';

	use Silex\Application;
	use Symfony\Component\HttpFoundation\Response;
	use Symfony\Component\HttpFoundation\RedirectResponse;

	$app = new Application();

	$app->get('/', function() {
	$html = <<<HTML
	<html>
	<body>
	<h1>Compare HTTP redirection codes by yourself</h1>
	<form action="redirect" method="POST">
	<h3>POST</h3>
	<input type="text" name="value" value="original" />
	<input type="submit" value="301" name="code" />
	<input type="submit" value="302" name="code" />
	<input type="submit" value="303" name="code" />
	<input type="submit" value="307" name="code" />
	</form>
	<form action="redirect" method="GET">
	<h3>GET</h3>
	<input type="text" name="value" value="original" />
	<input type="submit" value="301" name="code" />
	<input type="submit" value="302" name="code" />
	<input type="submit" value="303" name="code" />
	<input type="submit" value="307" name="code" />
	</form>
	<p>Source code on <a href="https://gist.github.com/2047633" title="Gist 2047633">GitHub</a>, by <a href="http://twitter.com/GromNaN">GromNaN</a></p>
	</body>
	</html>
	HTML;
	return new Response($html);
	});

	$app->match('/redirect', function () use ($app) {
	$code = $app['request']->get('code');
	$url = 'end?x=' . microtime(true);
	$response = new RedirectResponse($url, $code);
	$response->setCache(array('max_age' => 3600));
	return $response;
	});

	$app->match('/end', function () use ($app) {
	$html = <<<HTML
	<html>
	<body>
	<ul>
	<li>HTTP Method: {{ method }}</li>
	<li>POST value: {{ value }}</li>
	<li>Redirection page cached: {{ cache }} (invalid the first time)</li>
	</ul>
	<p><a href="./">Return to the previous page</a>, by <a href="http://twitter.com/GromNaN">GromNaN</a></p>
	<body>
	</html>
	HTML;
	return new Response(strtr($html, array(
	'{{ method }}' => $app['request']->getMethod(),
	'{{ value }}' => $app['request']->request->get('value') ?: '–',
	'{{ cache }}' => ((float) $app['request']->query->get('x') < microtime(true) - 0.2) ? 'Yes' : 'No',
	)));
	});

	$app->run();