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.
范例
例 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";
?>
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