How to get base URL with PHP?

Question

I am using XAMPP on Windows Vista. In my development, I have http://127.0.0.1/test_website/.

How do I get http://127.0.0.1/test_website/ with PHP?

I tried something like these, but none of them worked.

echo dirname(__FILE__)
or
echo basename(__FILE__);
etc.

Answer 1

I had the same question as the OP, but maybe a different requirement. I created this function...

/**
 * Get the base URL of the current page. For example, if the current page URL is
 * "https://example.com/dir/example.php?whatever" this function will return
 * "https://example.com/dir/" .
 *
 * @return string The base URL of the current page.
 */
function get_base_url() {

    $protocol = filter_input(INPUT_SERVER, 'HTTPS');
    if (empty($protocol)) {
        $protocol = "http";
    }

    $host = filter_input(INPUT_SERVER, 'HTTP_HOST');

    $request_uri_full = filter_input(INPUT_SERVER, 'REQUEST_URI');
    $last_slash_pos = strrpos($request_uri_full, "/");
    if ($last_slash_pos === FALSE) {
        $request_uri_sub = $request_uri_full;
    }
    else {
        $request_uri_sub = substr($request_uri_full, 0, $last_slash_pos + 1);
    }

    return $protocol . "://" . $host . $request_uri_sub;

}

...which, incidentally, I use to help create absolute URLs that should be used for redirecting.

Answer 2

$some_variable =  substr($_SERVER['PHP_SELF'], 0, strrpos($_SERVER['REQUEST_URI'], "/")+1);

and you get something like

lalala/tralala/something/

Answer 3

Try this. It works for me.

/*url.php file*/

trait URL {
    private $url = '';
    private $current_url = '';
    public $get = '';

    function __construct()
    {
        $this->url = $_SERVER['SERVER_NAME'];
        $this->current_url = $_SERVER['REQUEST_URI'];

        $clean_server = str_replace('', $this->url, $this->current_url);
        $clean_server = explode('/', $clean_server);

        $this->get = array('base_url' => "/".$clean_server[1]);
    }
}

Use like this:

<?php
/*
Test file

Tested for links:

http://localhost/index.php
http://localhost/
http://localhost/index.php/
http://localhost/url/index.php    
http://localhost/url/index.php/  
http://localhost/url/ab
http://localhost/url/ab/c
*/

require_once 'sys/url.php';

class Home
{
    use URL;
}

$h = new Home();

?>

<a href="<?=$h->get['base_url']?>">Base</a>

Answer 4

Just test and get the result.

// output: /myproject/index.php
$currentPath = $_SERVER['PHP_SELF'];
// output: Array ( [dirname] => /myproject [basename] => index.php [extension] => php [filename] => index ) 
$pathInfo = pathinfo($currentPath);
// output: localhost
$hostName = $_SERVER['HTTP_HOST'];
// output: http://
$protocol = strtolower(substr($_SERVER["SERVER_PROTOCOL"],0,5))=='https://'?'https://':'http://';
// return: http://localhost/myproject/
echo $protocol.$hostName.$pathInfo['dirname']."/";

Answer 5

   $base_url="http://".$_SERVER['SERVER_NAME'].dirname($_SERVER["REQUEST_URI"].'?').'/';

Usage:

print "<script src='{$base_url}js/jquery.min.js'/>";

Answer 6

$http = isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on'? "https://" : "http://";

$url = $http . $_SERVER["SERVER_NAME"] . $_SERVER['REQUEST_URI'];