Adds filtername to the
list of filters attached to
stream. This filter will be added with the specified
params to the beginning of the
list and will therefore be called first during stream
opperations. To add a filter to the end of the list, use stream_filter_append().
注: stream_register_filter() must be called first in order to register the desired user filter to filtername.
See Also:
stream_register_filter(), and
stream_filter_append()