Merge pull request #53 from WebDevStudios/show-admin-bar

Allow designers to hide/show wp admin bar using parameter w/out logging out.

inc/extras.php

@@ -64,4 +64,21 @@ function _s_render_title() {
 	}
 	add_action( 'wp_head', '_s_render_title' );
 
-endif;
+endif;
+
+/**
+ * Allows an administrator to set the logged in user.
+ * 
+ * Setting to false will emulate a logged out user.
+ *
+ * @return void
+ */
+function _s_wp_set_current_user() {
+	if ( ! is_user_logged_in() || ! isset ( $_GET['wp_set_current_user'] ) || ! current_user_can( 'create_users' ) ) {
+		return;
+	}
+
+	wp_set_current_user( is_numeric( $_GET['wp_set_current_user'] ) ? absint( $_GET['wp_set_current_user'] ) : ( 'true' == $_GET['wp_set_current_user'] ? true : false ) );
+}
+
+add_action( 'init', '_s_wp_set_current_user' );