stream_filter_registerstream_filter_remove
(PHP 5 >= 5.1.0)
stream_filter_remove — Remove a filter from a stream
说明
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.
参数
-
stream_filter -
The stream filter to be removed.
返回值
成功时返回 TRUE， 或者在失败时返回 FALSE。
范例
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);
?>
以上例程会输出：
Guvf vf a test
参见
- stream_filter_register() - Register a user defined stream filter
- stream_filter_append() - Attach a filter to a stream
- stream_filter_prepend() - Attach a filter to a stream
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