CODEWITHSUNDEEP
phppath
Yahreen
Yahreen

Reputation: 1669

Finding the top level directory, shortening path PHP

I have this which is probably a roundabout way of finding the path:

<?php require_once $parent_dir = dirname(dirname(dirname($_SERVER['SCRIPT_FILENAME']))).'/myFile.php'; ?>

It works, but is there a cleaner way of writing it?

My site has a subdomain. Here's where myFile.php is located:

http://sub.mydomain.com/dir/

Upvotes: 0

Views: 3170

Answers (5)

Jose
Jose

Reputation: 322

Maybe after more than 10 years, it may still help someone else.

If you need to find the top-level directory from whatever path, you can do it with one single line of code:

$top_level_dirname = dirname( $path,substr_count( $path,'/' ) );

The function dirname accepts as a second argument (not required, and 1 as default) the number of parent directories to go up. So, if you set that argument to the number of occurrences of "/", you will go up to the top.

Example:

$path = '/htdocs/public';

echo dirname( $path,substr_count( $path,'/' ); // will echo 'htdocs'

$path = '/htdocs/public/other_name';

echo dirname( $path,substr_count( $path,'/' ); // will still echo 'htdocs'

Upvotes: 0

Travesty3
Travesty3

Reputation: 14479

I'm also not exactly sure what you're trying to do, but perhaps something like this will shorten it for you:

$pathArr = explode("/", __DIR__);
var_dump($pathArr);
// previous was for debugging to see what gets put where, remove this once you sort it out.

// list($level1, $level2, ...) = explode("/", __FILE__);

Upvotes: 1

dfsq
dfsq

Reputation: 193291

Sometimes getcwd can be useful:

require_once getcwd() . '/../../myFile.php' ;

Upvotes: 0

leemeichin
leemeichin

Reputation: 3377

If you have PHP 5.3 (or above), you can use __DIR__:

$parent_dir = __DIR__.'/../myFile.php';

Your example seems to go a couple levels further up, so you can add to that:

$parent_dir = __DIR__.'/../../myFile.php';

__DIR__ is a magic constant that evaluates to the directory the file that calls it is located.

And as highlighted in the other answer, if you're after the root, $_SERVER[DOCUMENT_ROOT] will give you the path as defined in your server (eg. Apache) config.

Upvotes: 0

Hristo Petev
Hristo Petev

Reputation: 309

I'm not sure what exactly you are trying to do, but maybe $_SERVER['DOCUMENT_ROOT'] may help you.

Upvotes: 1

Related Questions