Você procurou por: implementing (Japonês - Inglês)

we define 3 classes, each implementing a different storage method:
example 3. storage_classes.inc

implementing the exported functions is the final step. the example function in first_module looks like this:
the example function in first_module looks like this:

class php_user_filter is predefined and is an abstract baseclass for use with user defined filters. see the manual page for stream_register_filter() for details on implementing user defined filters.
as with most php internal functions if a failure occours an e_warning message will be generated describing the nature of the error.