检索 WordPress 根目录路径? ？

Looking at the bottom of your wp-config.php file in the wordpress root directory will let you find something like this:

if ( !defined('ABSPATH') )
define('ABSPATH', dirname(__FILE__) . '/');

For an example file have a look here:
http://core.trac.wordpress.org/browser/trunk/wp-config-sample.php

You can make use of this constant called ABSPATH in other places of your wordpress scripts and in most cases it should point to your wordpress root directory.

Note: This answer is really old and things may have changed in WordPress land since.

I am guessing that you need to detect the WordPress root from your plugin or theme. I use the following code in FireStats to detect the root WordPress directory where FireStats is installed a a WordPress plugin.

function fs_get_wp_config_path()
{
$base = dirname(__FILE__);
$path = false;


if (@file_exists(dirname(dirname($base))."/wp-config.php"))
{
$path = dirname(dirname($base))."/wp-config.php";
}
else
if (@file_exists(dirname(dirname(dirname($base)))."/wp-config.php"))
{
$path = dirname(dirname(dirname($base)))."/wp-config.php";
}
else
$path = false;


if ($path != false)
{
$path = str_replace("\\", "/", $path);
}
return $path;
}

This an old question, but I have a new answer. This single line will return the path inside a template: :)

$wp_root_path = str_replace('/wp-content/themes', '', get_theme_root());

echo ABSPATH; // This shows the absolute path of WordPress

ABSPATH is a constant defined in the wp-config.php file.

You can use get_site_url() function to get the base url of the wordpress site.

For more information, please visit http://codex.wordpress.org/Function_Reference/get_site_url

There are 2 answers for this question Url & directory. Either way, the elegant way would be to define two constants for later use.

define (ROOT_URL, get_site_url() );
define (ROOT_DIR, get_theme_root() );

I think this would do the trick:

function get_wp_installation()
{
$full_path = getcwd();
$ar = explode("wp-", $full_path);
return $ar[0];
}

   Please try this for get the url of root file.

First Way:

 $path = get_home_path();
print "Path: ".$path;
// Return "Path: /var/www/htdocs/" or


// "Path: /var/www/htdocs/wordpress/" if it is subfolder

Second Way:

And you can also use


"ABSPATH"


this constant is define in wordpress config file.

If you have WordPress bootstrap loaded you can use get_home_path() function to get path to the WordPress root directory.

For retrieving the path you can use a function <?php $path = get_home_path(); ?>. I do not want to just repeat what had been already said here, but I want to add one more thing:

If you are using windows server, which is rare case for WordPress installation, but still happens sometimes, you might face a problem with the path output. It might miss a "\" somewhere and you will get an error if you will be using such a path. So when outputting make sure to sanitize the path:

<?php


$path = get_home_path();
$path = wp_normalize_path ($path);


// now $path is ready to be used :)


?>

theme root directory path code

 <?php $root_path = get_home_path(); ?>
print "Path: ".$root_path;

Return "Path: /var/www/htdocs/" or "Path: /var/www/htdocs/wordpress/" if it is subfolder

Theme Root Path

 $theme_root = get_theme_root();
echo $theme_root

Results:- /home/user/public_html/wp-content/themes

Try this function for get root directory path:

get_template_directory_uri();

I like @Omry Yadan's solution but I think it can be improved upon to use a loop in case you want to continue traversing up the directory tree until you find where wp-config.php actually lives. Of course, if you don't find it and end up in the server's root then all is lost and we return a sane value (false).

function wp_get_web_root() {


$base = dirname(__FILE__);
$path = false;


while(!$path && '/' != $base) {
if(@file_exists(dirname($base)).'/wp-config.php') {
$path = dirname($base);
} else {
$base = dirname($base);
}
}


return $path;
}

I like the accepted answer and @cfx's solution, but they can be consolidated a bit more:

function base_dir () {
$path = dirname(__FILE__);
while (true) {
if (file_exists($path."/wp-config.php")) {
return $path."/";
}
$path = dirname($path);
}
}

This allows for you to find the base directory in files that are not loaded by WordPress, such as dynamically-created javascript and css files.

Why was this made so complicated? One command:

Nginx

grep -i 'root' /etc/nginx/sites-enabled/*

Apache

grep -i 'DocumentRoot' /etc/apache2/sites-enabled/*

Here are the various WorPress solutions get the directory. You can pick anyone as per the need.

 echo "<br/>".get_home_url();     // https://mysiteurl.com


echo "<br/>".ABSPATH;            // /app/


echo "<br/>".get_home_path();    // /app/


echo "<br/>".get_site_url();     // https://mysiteurl.com


echo "<br/>".get_template_directory(); // /app/wp-content/themes/mytheme


echo "<br/>".dirname(__FILE__);  // /app/wp-content/plugins/myplugin/includes


echo "<br/>".get_theme_root();   // /app/wp-content/themes


echo "<br/>".plugin_dir_path( __FILE__ ); // /app/wp-content/plugins/myplugin/includes/


echo "<br/>".getcwd();           // /app/wp-admin