Question

I am trying to get the siteurl without hardcoding and store it in a constant inside of a configuration file, so that I can use it within my scripts irrespective of the nesting/nested folders. This configuration file is stored in a folder within the main installation directory of the website.

Example:

Install website on http://www.mydomain.com

Configuration file located in http://www.mydomain.com/my_folder/configuration.php

Want to declare a constant in configuration.php file so that it always gets the installed path dynamically without having to hardcode it. So define("MY_SITE_URL", ???? )

What should be in the place of the ???? in the code above so that it works even if my main website is installed within nested folders?

Examples: All the pages will contain the same configuration.php at the beginning of the file as a require

Install website in Site 1:

Root directory of website: http://www.mydomain.com/demos/site1/

Location of configuration: http://www.mydomain.com/demos/site1/my_folder/configuration.php

Sub folder: http://www.mydomain.com/demos/site1/1/index.php

echoing MY_SITE_URL in index.php should give http://www.mydomain.com/demos/site1/

Sub folder: http://www.mydomain.com/demos/site1/1/2/index.php

Location of configuration: http://www.mydomain.com/demos/site1/my_folder/configuration.php

echoing MY_SITE_URL in index.php should give http://www.mydomain.com/demos/site1/

Install website in Site 2:

Root directory of website: http://www.mydomain.com/demos/site2/

Location of configuration: http://www.mydomain.com/demos/site2/my_folder/configuration.php

Sub folder: http://www.mydomain.com/demos/site2/1/index.php

echoing MY_SITE_URL in index.php should give http://www.mydomain.com/demos/site2/

Sub folder: http://www.mydomain.com/demos/site2/1/2/index.php

Location of configuration: http://www.mydomain.com/demos/site2/my_folder/configuration.php

echoing MY_SITE_URL in index.php should give http://www.mydomain.com/demos/site2/

Please note that the TLD can change. That means, installing the website on http://www.mydomain.tk, http://www.mydomai.org, http://www.mydomain.net, http://www.mydomain.co.ca etc. should not render the code useless.

WHAT I HAVE SO FAR:

I have tried to put together a script. I almost got there, but not 100%. Here it is:

function domain_url()
{
    $pageURL = 'http';
    if(isset($_SERVER["HTTPS"]))
    if ($_SERVER["HTTPS"] == "on") {$pageURL .= "s";}
    $pageURL .= "://";
    if ($_SERVER["SERVER_PORT"] != "80") 
    {
        $pageURL .= $_SERVER["SERVER_NAME"].":".$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"];
    } 
    else 
    {
        $pageURL .= $_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"];
    }

    //Remove any GET params from url
    $remmove_get = strtok($pageURL, '?');
    //Removes trailing slash only at the end of string. This slash is received only when accessing a page within sub folders.
    $pageURL = preg_replace('{/$}', '', $remmove_get);

    //Remove page name
    $pageURL = dirname($pageURL);

    return $pageURL;
}
define("MY_SITE_URL", domain_url().'/'); 

Issue with my current code:

Running the code on http://www.mydomain.com/demos/site1/ and http://www.mydomain.com/demos/site1/1/ gives MY_SITE_URL as http://www.mydomain.com/demos/site1/ and this is correct.

But when I run the code on http://www.mydomain.com/demos/site1/1/2/index.php, echoing MY_SITE_URL gives me http://www.mydomain.com/demos/site1/1/ when in fact I wanted: http://www.mydomain.com/demos/site1/

How to solve this?

Answer 1

If you always want the 2nd directory then you can use

$boom = explode("/", $_SERVER['REQUEST_URI']);
$domain_url = $_SERVER["SERVER_NAME"].'/'.$boom[1].'/'.$boom[2];
echo $domain_url;

If the site is ever not in the 2nd directory you can use: (this code should be a bit more concise). Just replace site1 with the name of the site

$site_search = "site1";
$url = $_SERVER["SERVER_NAME"].$_SERVER['REQUEST_URI'];
$domain_url = substr($url, 0, strpos($url, $site_search)+strlen($site_search));;
echo $domain_url;   

Update
This will get the url for everything before /my_folder

$domain_url = "http://".$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'];
$domain_url = substr($url, 0, strpos($url, '/my_folder'));
define("MY_SITE_URL", domain_url().'/'); 

On a side-note, you should try the Code-Igniter framework. The framework makes this sort of thing extremely easy.