stream_copy_to_stream
(PHP 5)
stream_copy_to_stream — Copies data from one stream to another
说明
int stream_copy_to_stream
( resource $source
, resource $dest
[, int $maxlength
[, int $offset
]] )
Makes a copy of up to maxlength bytes of data from the current position (or from the offset position, if specified) in source to dest . If maxlength is not specified, all remaining content in source will be copied.
参数
- source
-
The source stream
- dest
-
The destination stream
- maxlength
-
Maximum bytes to copy
- offset
-
The offset where to start to copy data
返回值
Returns the total count of bytes copied.
更新日志
| 版本 | 说明 |
|---|---|
| 5.1.0 | Added the offset parameter |
范例
Example#1 A stream_copy_to_stream() example
<?php
$src = fopen('http://www.example.com', 'r');
$dest1 = fopen('first1k.txt', 'w');
$dest2 = fopen('remainder.txt', 'w');
echo stream_copy_to_stream($src, $dest1, 1024) . " bytes copied to first1k.txt\n";
echo stream_copy_to_stream($src, $dest2) . " bytes copied to remainder.txt\n";
?>
