how to grab the relative path of a file with php

Question

i am trying to catch the relative path to a file to create a share link. From my httpdocs folder on the webserver, my file is here:

jack/single/uplo         


        

Answer 1

You can use $_SERVER['HTTP_HOST'] to get you site's name:

function get_link($to_file){
    return "https://".$_SERVER['HTTP_HOST']."/jack/single/".$to_file;
}

echo get_link($dir . '/' . $file);

Change the function's url parts according to your project (do you use https or http? Will /jack/single always be the parent folder of uploads?)

Answer 2

You could use preg_replace on the output of realpath to replace everything up to httpdocs with your site's URL:

echo preg_replace('#^' . preg_quote($_SERVER['DOCUMENT_ROOT']) . '[\\\\/]#', "{$_SERVER['HTTP_HOST']}/", realpath('test6.php')) . "\n";