php man page for stream_filter_remove

STREAM_FILTER_REMOVE(3) 						 1						   STREAM_FILTER_REMOVE(3)

stream_filter_remove - Remove a filter from a stream

SYNOPSIS
       bool stream_filter_remove (resource  $stream_filter)

DESCRIPTION
	Removes  a  stream filter previously added to a stream with stream_filter_prepend(3) or stream_filter_append(3). Any data remaining in the
       filter's internal buffer will be flushed through to the next filter before removing it.

PARAMETERS
	      o $stream_filter
		- The stream filter to be removed.

RETURN VALUES
	Returns TRUE on success or FALSE on failure.

EXAMPLES
       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
");

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

	      ?>

	      The above example will output:

	      Guvf vf a test

SEE ALSO
       stream_filter_register(3), stream_filter_append(3), stream_filter_prepend(3).

PHP Documentation Group 												   STREAM_FILTER_REMOVE(3)