deprecated_function_run action-hook . WP 2.5.0

Fires when a deprecated function is called.

Usage

add_action( 'deprecated_function_run', 'action_function_name_392', 10, 3 );
function action_function_name_392( $function, $replacement, $version ){
	// action...
}

$function(string)

The function that was called.

$replacement(string)

The function that should have been called.

$version(string)

The version of WordPress that deprecated the function.

Where the hook is called

do_action( 'deprecated_function_run', $function, $replacement, $version );

Where in WP core the hook is used WordPress

add_action( 'deprecated_function_run', 'rest_handle_deprecated_function', 10, 3 );