PHP Manual: stream_filter

stream_filter_remove

(PHP 5 >= 5.1.0RC1)

stream_filter_remove -- Remove a filter from a stream

Description

bool stream_filter_remove ( resource stream_filter )

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.

Example 1. Dynamicly refiltering a stream

<?php
/* 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($fp, "This is ");
stream_filter_remove($rot13_filter);
fwrite($fp, "a test\n");

rewind($fp);
fpassthru($fp);
fclose($fp);

/* Expected Output
   ---------------

Guvf vf a test

 */
?>