php_user_filter::filter
Called when applying the filter
Description
public int php_user_filter::filter
( resource $in
, resource $out
, int &$consumed
, bool $closing
)
Parameters
-
in
-
in is a resource pointing to a bucket brigade
which contains one or more bucket objects containing data to be filtered.
-
out
-
out is a resource pointing to a second bucket brigade
into which your modified buckets should be placed.
-
consumed
-
consumed, which must always
be declared by reference, should be incremented by the length of the data
which your filter reads in and alters. In most cases this means you will
increment consumed by $bucket->datalen
for each $bucket.
-
closing
-
If the stream is in the process of closing
(and therefore this is the last pass through the filterchain),
the closing parameter will be set to TRUE.
Return Values
The filter method must return one of
three values upon completion.