plugin_basename() WordPress Function

function plugin_basename( $file ) {
	global $wp_plugin_paths;

	// $wp_plugin_paths contains normalized paths.
	$file = wp_normalize_path( $file );

	arsort( $wp_plugin_paths );

	foreach ( $wp_plugin_paths as $dir => $realdir ) {
		if ( strpos( $file, $realdir ) === 0 ) {
			$file = $dir . substr( $file, strlen( $realdir ) );
		}
	}

	$plugin_dir    = wp_normalize_path( WP_PLUGIN_DIR );
	$mu_plugin_dir = wp_normalize_path( WPMU_PLUGIN_DIR );

	// Get relative path from plugins directory.
	$file = preg_replace( '#^' . preg_quote( $plugin_dir, '#' ) . '/|^' . preg_quote( $mu_plugin_dir, '#' ) . '/#', '', $file );
	$file = trim( $file, '/' );
	return $file;
}
Used By	Description
wp-includes/rest-api/endpoints/class-wp-rest-plugins-controller.php:WP_REST_Plugins_Controller::validate_plugin_param()	Checks that the “plugin” parameter is a valid path.
wp-includes/rest-api/endpoints/class-wp-rest-plugins-controller.php:WP_REST_Plugins_Controller::sanitize_plugin_param()	Sanitizes the “plugin” parameter to be a proper plugin file with “.php” appended.
wp-includes/load.php:wp_skip_paused_plugins()	Filters a given list of plugins, removing any paused plugins from it.
wp-admin/includes/ajax-actions.php:wp_ajax_delete_plugin()	Ajax handler for deleting a plugin.
wp-admin/includes/ajax-actions.php:wp_ajax_update_plugin()	Ajax handler for updating a plugin.
wp-admin/includes/plugin.php:is_uninstallable_plugin()	Determines whether the plugin can be uninstalled.
wp-admin/includes/plugin.php:uninstall_plugin()	Uninstalls a single plugin.
wp-admin/includes/plugin.php:add_menu_page()	Adds a top-level menu page.
wp-admin/includes/plugin.php:add_submenu_page()	Adds a submenu page.
wp-admin/includes/plugin.php:deactivate_plugins()	Deactivates a single plugin or multiple plugins.
wp-admin/includes/plugin.php:activate_plugin()	Attempts activation of plugin in a “sandbox” and redirects on success.
wp-admin/includes/plugin.php:get_plugin_data()	Parses the plugin contents to retrieve plugin’s metadata.
wp-admin/includes/plugin.php:_get_plugin_data_markup_translate()	Sanitizes plugin data, optionally adds markup, optionally translates.
wp-admin/includes/plugin.php:get_plugin_files()	Gets a list of a plugin’s files.
wp-admin/includes/plugin.php:get_plugins()	Checks the plugins directory and retrieve all plugin files with plugin data.
wp-includes/link-template.php:plugins_url()	Retrieves a URL within the plugins or mu-plugins directory.
wp-includes/plugin.php:register_activation_hook()	Set the activation hook for a plugin.
wp-includes/plugin.php:register_deactivation_hook()	Sets the deactivation hook for a plugin.
wp-includes/plugin.php:register_uninstall_hook()	Sets the uninstallation hook for a plugin.