PHP: parse URL for matching directory /somedirectory/ and execute conditional code

Question

This has to be pretty simple, but I'd like to parse the current URL and execute conditional code depending on whether the user is on the /sitemap/ directory.

So for example, if the site is example.com, and if the request is example.com/sitemap/.

Then I want to execute conditional code in that case. I'm using wordpress so I'm not sure if there is a built-in function that gets this...

A pure PHP solution is fine.

Answer 1

I don’t know if Wordpress has some function for that. But you could do this:

$_SERVER['REQUEST_URI_PATH'] = preg_replace('/\\?.*/', '', $_SERVER['REQUEST_URI']);

$_SERVER['REQUEST_URI'] contains the URI path plus the query and the code above will just get the URI path. Then you can compare it to your string:

if ($_SERVER['REQUEST_URI_PATH'] == '/sitemap/') {
    // URI path is "/sitemap/"
}

Or you do a starts with test:

$start = '/sitemap/';
if (substr($_SERVER['REQUEST_URI_PATH'], 0, strlen($start)) == $start) {
    // URI path starts with "/sitemap/"
}

Answer 2

You can use build-in web server variables for this. Here are some example:

• $_SERVER['HTTP_HOST'] - host name for current request
• $_SERVER['REQUEST_URI'] - requested url with get parameters

You can also see full list by print_r($_SERVER);.

Answer 3

$paths = explode ('/', $_SERVER['PHP_SELF']);

This will give you an array of paths for the given script. You can perform logic based on the resulting array.

Answer 4

And you run phpinfo() in a simple script, you will see EVERYTHING you might want to get your hands on from pure PHP. (and a lot of other stuff too, just scroll to the bottom of the output for PHP variables.)

Answer 5

current( explode( '/', trim( $_SERVER['REQUEST_URI'], '/' ) ) )

will return the first part of the url

explode( '/', trim( $_SERVER['REQUEST_URI'], '/' ) )

will create an array of the url parts

Answer 6

With the following line of PHP code you will get the URL of the HTTP Request of the current page:

$url = ((preg_match("/(^\z|^off\z)/i", $_SERVER['HTTPS'])) ? 'http://' : 'https://') . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];

Then you may want to parse this URL to get a reliable result array like this:

• [SCHEME] => http
• [AUTHORITY] => user:[email protected]:80
• [USERINFO] => user:pass
• [USER] => user
• [PASS] => pass
• [HOST] => www.domain.com
• [REGNAME] => www.domain.com
• [DOMAIN] => www.domain.com
• [LABEL][] =>
• [LABEL][] => com
• [LABEL][] => domain
• [LABEL][] => www
• [PORT] => 80
• [PATH] => /dir1/dir2/dir3/page.html
• [SEGMENT][] => dir1
• [SEGMENT][] => dir2
• [SEGMENT][] => dir3
• [SEGMENT][] => page.html
• [QUERY] => key1=value1&key2=value2
• [GET][key1] => value1
• [GET][key2] => value2
• [FRAGMENT] => anchor/line
• [ANCHOR][] => anchor
• [ANCHOR][] => line

There's a standard-compliant, robust and performant PHP Class for handling and parsing URLs / URIs according to RFC 3986 and RFC 3987 available for download and free use:

http://andreas-hahn.com/en/parse-url