(PHP 5 >= 5.1.0)
stream_filter_remove — Remove a filter from a stream
Removes a stream filter previously added to a stream with stream_filter_prepend() or stream_filter_append(). Any data remaining in the filter's internal buffer will be flushed through to the next filter before removing it.
The stream filter to be removed.
成功时返回 TRUE， 或者在失败时返回 FALSE.
Example #1 Dynamicly refiltering a stream 以上例程会输出：
/* Open a test file for reading and writing */
$fp = fopen("test.txt", "rw");
$rot13_filter = stream_filter_append($fp, "string.rot13", STREAM_FILTER_WRITE);
fwrite($fp, "This is ");
fwrite($fp, "a test ");
Guvf vf a test
Example #1 Dynamicly refiltering a stream