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 = -1 [, int $offset = 0 ]] )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, $dest1, 1024) . " bytes copied to first1k.txt
";
echo stream_copy_to_stream($src, $dest2) . " bytes copied to remainder.txt
";
?>
参见
- copy() - 拷贝文件
