pre_option_enable_xmlrpc │ filter-hook │ WP 1.0

This filter is documented in wp-includes/option.php

Usage

add_filter( 'pre_option_enable_xmlrpc', 'wp_kama_pre_option_enable_xmlrpc_filter', 10, 2 );

/**
 * Function for `pre_option_enable_xmlrpc` filter-hook.
 * 
 * @param  $false  
 * @param  $string 
 *
 * @return 
 */
function wp_kama_pre_option_enable_xmlrpc_filter( $false, $string ){
	// filter...
	return $false;
}

$false

-

$string

-

Where the hook is called

$is_enabled = apply_filters( 'pre_option_enable_xmlrpc', false, 'enable_xmlrpc', false );

Where the hook is used in WordPress