WP_Customize_Nav_Menus::ajax_search_available_items() WordPress Method

	public function ajax_search_available_items() {
		check_ajax_referer( 'customize-menus', 'customize-menus-nonce' );

		if ( ! current_user_can( 'edit_theme_options' ) ) {
			wp_die( -1 );
		}

		if ( empty( $_POST['search'] ) ) {
			wp_send_json_error( 'nav_menus_missing_search_parameter' );
		}

		$p = isset( $_POST['page'] ) ? absint( $_POST['page'] ) : 0;
		if ( $p < 1 ) {
			$p = 1;
		}

		$s     = sanitize_text_field( wp_unslash( $_POST['search'] ) );
		$items = $this->search_available_items_query(
			array(
				'pagenum' => $p,
				's'       => $s,
			)
		);

		if ( empty( $items ) ) {
			wp_send_json_error( array( 'message' => __( 'No results found.' ) ) );
		} else {
			wp_send_json_success( array( 'items' => $items ) );
		}
	}
Uses	Description
wp-includes/class-wp-customize-nav-menus.php:WP_Customize_Nav_Menus::search_available_items_query()	Performs post queries for available-item searching.
wp-includes/capabilities.php:current_user_can()	Returns whether the current user has the specified capability.
wp-includes/l10n.php:__()	Retrieve the translation of $text.
wp-includes/formatting.php:sanitize_text_field()	Sanitizes a string from user input or from the database.
wp-includes/formatting.php:wp_unslash()	Removes slashes from a string or recursively removes slashes from strings within an array.
wp-includes/pluggable.php:check_ajax_referer()	Verifies the Ajax request to prevent processing requests external of the blog.
wp-includes/functions.php:wp_send_json_error()	Send a JSON response back to an Ajax request, indicating failure.
wp-includes/functions.php:absint()	Convert a value to non-negative integer.
wp-includes/functions.php:wp_send_json_success()	Send a JSON response back to an Ajax request, indicating success.
wp-includes/functions.php:wp_die()	Kills WordPress execution and displays HTML page with an error message.