Using any router from a subdirectory

[nik_jain]

I was trying to use one of the many PHP routers like klein, when I kept hitting an issue.

The issue was my root folder was a subdirectory of the www folder .

So instead of requesting http://localhost/index.php (as one would if the index.php was located in /var/www) I was requesting http://localhost/issues/web/index.php (index.php in /var/www/issues/web)

 

Naturally the router looked for a match for the whole path(issues/web/index.php) instead of just the relative path(/index.php) Which caused it not to match anything !

 

Questions:

1. Is this a viable solution for this problem (Got this from https://github.com/chriso/klein.php/wiki/Sub-Directory-Installation? Any possible gotchas I should be on the look out for ?

$base  = dirname($_SERVER['PHP_SELF']);
// Update request when we have a subdirectory    
if(ltrim($base, '/')){ 
    $_SERVER['REQUEST_URI'] = substr($_SERVER['REQUEST_URI'], strlen($base));
}
//initialize router code.

2. This must be an extremely common situation! How do people deal with this ? OR is it simply not common for routers to be installed to subfolders and called from there ?

 

Thanks

[requinix]

1. It's bad form to modify values in the superglobals so try to avoid that.

 

It looks like klein has a ->with() that would work for this.

$klein->with("/issues/web", function() use($klein) {
    $klein->respond("GET", "/index.php", function($request, $response) { ... };
}

For the "regular" case you may be able to do

$klein->with("", function() use($klein) { ... });

However can't you just base your site out of /var/www/issues/web instead?

 

2. Depends on the router.

[nik_jain]

->with() works nicely! Thanks

    $base  = dirname($_SERVER['PHP_SELF']) ;
    if ($base === '/' || $base === '\\'){
        $base = '' ;
    }
    $klein = new \Klein\Klein();
    $klein->with($base, function() use($klein) {
        $klein->respond('GET', '/hello', function () {
            return 'Hello World!';
        });
    });
    $klein->dispatch();

 

 

However can't you just base your site out of /var/www/issues/web instead?

by hardcoding into .htaccess ? I kind of wanted a 'redistributable' solution..

[requinix]

Then that's getting into "configuration" territory. You need to expose to your end-user a place where they can specify the base URL, then you use that value where needed (eg, the with() and when constructing URLs).

[nik_jain]

I see.. So I guess another way of saying what I want to ask is 'how to detect the BASE_URL automatically ?'

 

If memory serves right then some frameworks do try to detect the base URL automatically while also giving an option to set it manually.

 

ok googling around I found this: http://blog.lavoie.sl/2013/02/php-document-root-path-and-url-detection.html

 

But I think the following way should also work, with any router.

I don't see any gotchas in this, but there might be.

    $base  = dirname($_SERVER['PHP_SELF']) ;
    if ($base === '/' || $base === '\\'){
        $base = '' ;
    }
    $klein = new \Klein\Klein();
    $klein->respond('GET', $base.'/hello', function () {
        return 'Hello World!';
    });
    $klein->dispatch();