WP_Widget::get_field_id( string $field_name ): string
Constructs id attributes for use in WP_Widget::form() fields.
Description
This function should be used in form() methods to create id attributes for fields to be saved by WP_Widget::update().
Parameters
-
$field_namestring Required -
Field name.
Return
string ID attribute for $field_name.
Source
File: wp-includes/class-wp-widget.php.
View all references
public function get_field_id( $field_name ) {
$field_name = str_replace( array( '[]', '[', ']' ), array( '', '-', '' ), $field_name );
$field_name = trim( $field_name, '-' );
return 'widget-' . $this->id_base . '-' . $this->number . '-' . $field_name;
}
Changelog
| Version | Description |
|---|---|
| 4.4.0 | Array format field IDs are now accepted. |
| 2.8.0 | Introduced. |