plugins_url( string $path = '', string $plugin = '' )

Retrieves a URL within the plugins or mu-plugins directory.

Description

Defaults to the plugins directory URL if no arguments are supplied.

Parameters

$path

(string) (Optional) Extra path appended to the end of the URL, including the relative directory if $plugin is supplied.

Default value: ''

$plugin

(string) (Optional) A full path to a file inside a plugin or mu-plugin. The URL will be relative to its directory. Typically this is done by passing __FILE__ as the argument.

Default value: ''

Return

(string) Plugins URL link with optional paths appended.

Source

File: wp-includes/link-template.php

function plugins_url( $path = '', $plugin = '' ) {

	$path = wp_normalize_path( $path );
	$plugin = wp_normalize_path( $plugin );
	$mu_plugin_dir = wp_normalize_path( WPMU_PLUGIN_DIR );

	if ( !empty($plugin) && 0 === strpos($plugin, $mu_plugin_dir) )
		$url = WPMU_PLUGIN_URL;
	else
		$url = WP_PLUGIN_URL;


	$url = set_url_scheme( $url );

	if ( !empty($plugin) && is_string($plugin) ) {
		$folder = dirname(plugin_basename($plugin));
		if ( '.' != $folder )
			$url .= '/' . ltrim($folder, '/');
	}

	if ( $path && is_string( $path ) )
		$url .= '/' . ltrim($path, '/');

	/**
	 * Filters the URL to the plugins directory.
	 *
	 * @since WP-2.8.0
	 *
	 * @param string $url    The complete URL to the plugins directory including scheme and path.
	 * @param string $path   Path relative to the URL to the plugins directory. Blank string
	 *                       if no path is specified.
	 * @param string $plugin The plugin file path to be relative to. Blank string if no plugin
	 *                       is specified.
	 */
	return apply_filters( 'plugins_url', $url, $path, $plugin );
}

Expand Source Code View on GitHub

Uses

Uses
Uses	Description
wp-includes/link-template.php: set_url_scheme()	Sets the scheme for a URL.
wp-includes/link-template.php: plugins_url	Filters the URL to the plugins directory.
wp-includes/plugin.php: plugin_basename()	Gets the basename of a plugin.
wp-includes/plugin.php: apply_filters()	Call the functions added to a filter hook.
wp-includes/functions.php: wp_normalize_path()	Normalize a filesystem path.

Used By

Used By
Used By	Description
wp-includes/theme.php: get_theme_root_uri()	Retrieve URI for themes directory.
wp-includes/plugin.php: plugin_dir_url()	Get the URL directory path (with trailing slash) for the plugin __FILE__ passed in.

Changelog

Changelog
Version	Description
WP-2.6.0	Introduced.