function add_option_update_handler( $option_group, $option_name, $sanitize_callback = '' ) {}

Register a setting and its sanitization callback


  • string $option_group: A settings group name. Should correspond to a whitelisted option key name. Default whitelisted option key names include “general,” “discussion,” and “reading,” among others.
  • string $option_name: The name of an option to sanitize and save.
  • unknown_type $sanitize_callback: A callback function that sanitizes the option’s value.

Source code

function add_option_update_handler( $option_group, $option_name, $sanitize_callback = '' ) {

	_deprecated_function( __FUNCTION__, '3.0', 'register_setting()' );

	return register_setting( $option_group, $option_name, $sanitize_callback );



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