To get the plugin directory path in WordPress, you can use the plugins_url() function or the WP_PLUGIN_DIR constant.
1. Using plugins_url() Function:

$plugin_url = plugins_url();
echo $plugin_url; // Outputs the URL of the plugins directory

If you want the URL for a specific plugin:

$plugin_url = plugins_url('my-plugin-folder/');
echo $plugin_url; // Outputs the URL of the specific plugin's folder.

2. Using WP_PLUGIN_DIR Constant:

$plugin_dir = WP_PLUGIN_DIR;
echo $plugin_dir; // Outputs the filesystem path of the plugins directory.

If you need the path for a specific plugin:

$plugin_path = WP_PLUGIN_DIR . '/my-plugin-folder/';
echo $plugin_path; // Outputs the filesystem path of the specific plugin's folder.

These methods allow you to work with plugin paths and URLs within your WordPress site.