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register_sidebar_widget( string|int $name, callable $output_callback, string $classname = '', mixed $params )

This function has been deprecated. Use wp_register_sidebar_widget() instead.

Register widget for sidebar with backward compatibility.

Description

Allows $name to be an array that accepts either three elements to grab the first element and the third for the name or just uses the first element of the array for the name.

Passes to wp_register_sidebar_widget() after argument list and backward compatibility is complete.

See also

Parameters

$name

(string|int) (Required) Widget ID.

$output_callback

(callable) (Required) Run when widget is called.

$classname

(string) (Optional) Classname widget option.

Default value: ''

$params

(mixed) (Optional) Widget parameters.

Source

File: wp-includes/deprecated.php 

function register_sidebar_widget($name, $output_callback, $classname = '', ...$params) {
	_deprecated_function( __FUNCTION__, '2.8.0', 'wp_register_sidebar_widget()' );
	// Compat.
	if ( is_array( $name ) ) {
		if ( count( $name ) === 3 ) {
			$name = sprintf( $name[0], $name[2] );
		} else {
			$name = $name[0];
		}
	}

	$id      = sanitize_title( $name );
	$options = array();
	if ( ! empty( $classname ) && is_string( $classname ) ) {
		$options['classname'] = $classname;
	}

	wp_register_sidebar_widget( $id, $name, $output_callback, $options, ...$params );
}

Uses

Uses Description
wp-includes/formatting.php: sanitize_title()

Sanitizes a string into a slug, which can be used in URLs or HTML attributes.
wp-includes/functions.php: _deprecated_function()

Mark a function as deprecated and inform when it has been used.
wp-includes/widgets.php: wp_register_sidebar_widget()

Register an instance of a widget.

Changelog

Version Description
2.8.0 Use wp_register_sidebar_widget()
2.2.0 Introduced.

© 2003–2019 WordPress Foundation
Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/functions/register_sidebar_widget