php - Wordpress Define Variable Plugin -

php - Wordpress Define Variable Plugin -

i'm attempting create plugin site in wordpress both practice , execution. in plugin variety of files. want define plugin directory constant use:

define('custom_editing__url', plugin_dir_url(__file__));

when include:

//folders define('widgets', custom_editing__url . 'widgets/'); require_once(widgets . 'widgets.php');

i'm able file widgets.php, when phone call within of file:

echo custom_editing__url;

i custom_editing__url. want http://www.example.com/widgets/widget.php

can explain i'm missing?

edit: more info problem @ hand.

right have figured out widgets.php not accepting defined variables. example... calling file able create widget using format of:

class foo_widget extends wp_widget { // content }

but widgets.php file cannot resolve find wp_widget.

so answer. don't have actual documentation explain it. copied of elements akismet plugin work way needed to.

define( 'custom_editing__url', plugin_dir_url( __file__ ) ); define( 'custom_editing__dir', plugin_dir_path( __file__ ) ); require_once( custom_editing__dir . 'class.custom-editing-widget.php' ); require_once( custom_editing__dir . 'class.custom-editing.php'); register_activation_hook( __file__, array( 'customediting', 'plugin_activation' ) ); register_deactivation_hook( __file__, array( 'customediting', 'plugin_deactivation' ) ); add_action( 'init', array( 'customediting', 'init' ) );

in file class.custom-editing.php create class these base of operations parameters:

class customediting { private static $initiated = false; public function __construct(){ } public static function init() { if ( ! self::$initiated ) { self::init_hooks(); } } private static function init_hooks() { self::$initiated = true; } }

this solves base of operations errors created activation hooks believe. if can explain parts in improve terms appreciated, don't understand why worked , had didn't.

php wordpress variables constants