Routing issue with Slim framework

问题:

I just got started with Slim. My application for the moment is something like this:

<?php

require 'vendor/autoload.php';

$app = new \Slim\Slim([
    'debug' => true
]);

var_dump($app->request());

$app->get('/:name', function ($name) {
    echo "Hello, $name";
});

$app->get('/', function () {
    echo 'hello world';
});

$app->run();

I am running it on localhost using PHP built in web server. For every request I try in the browser (or Postman, or CURL), what I get is always "hello world", as if the first route is not considered. Moreover, if I remove the second route, I always get a 404.

Am I forgetting something?

For debugging purposes, which HTTP header is used by SLIM to determine the route?

回答1:

You can't remove the second route $app->get('/') as it is the Home default route and it is quite normal to get a 404 because $app->get('/:name', function ($name) {}) is expecting a callback function's argument 'name' that is missing.

Are you trying the following:

http://localhost/mysite/  --- Outputs Hello World
http://localhost/mysite/marcosh  --- Outputs a 404 ??

If this is the case then as a77icus5 suggested we may need to look into your htacess file and what is the project directory structure...

I have a fresh Slim Skeleton install and I thought I'd share my configuration with you...

My Web project directory is as follow :

Webroot
-htaccess
- public
-- htaccess
-- assets
--- js
--- css
- templates
- app
- vendor
-- Slim
-- Twig

In the first .htaccess located in the project root directory I added :

<IfModule mod_rewrite.c>
  RewriteEngine On
  RewriteRule ^(.*)$ public/$1 [L]
</IfModule>

Here public matches the name of the app public folder

Then in the .htaccess located in the public folder I added :

<IfModule mod_php5.c>
  RewriteEngine On
  RewriteCond %{REQUEST_FILENAME} !-f
  RewriteRule ^ index.php [QSA,L]
</IfModule>

Then in SLIM -> Environment.php (line 142 - Virtual Path ) and try to edit as follow :

  // Virtual path
    // $env['PATH_INFO'] = substr_replace($requestUri, '', 0, strlen($physicalPath)); // <-- Remove physical path
        $env['PATH_INFO'] = str_replace(str_replace('/public', "", dirname($_SERVER['PHP_SELF'])), '', "/".$requestUri); // remove public from URI
        $env['PATH_INFO'] = str_replace('?' . $queryString, '', $env['PATH_INFO']); // <-- Remove query string
        $env['PATH_INFO'] = '/' . ltrim($env['PATH_INFO'], '/'); // <-- Ensure leading slash

回答2:

You need some kind of url rewriting for Slim to work. Since you are using internal PHP webserver you cannot use mod_rewrite. Instead create route.php file to same folder as index.php with following code.

<?php

# Used only for running the app with internal PHP webserver
# php -S localhost:8080 route.php

if (file_exists(__DIR__ . "/" . $_SERVER["REQUEST_URI"])) {
    return false;
} else {
    include_once "index.php";
}

Then run it with php -S localhost:8080 route.php. Everything works now as expected.

$ curl --include http://localhost:8080/foo
HTTP/1.1 200 OK
Host: localhost:8080
Connection: close
X-Powered-By: PHP/5.6.2
Content-type: text/html;charset=UTF-8

Hello, foo

回答3:

Eventually, I found out that the problem was given by a wrong document root.

I was launching the application from the main folder of my project using php -S localhost:8080 public/index.php and this caused the PATH_INFO header of the HTTP request not to be compiled.

Changing directory to ./public and launching the app using php -S localhost:8080 index.php solved the problem