stream_copy_to_stream Copies data from one stream to another


stream_copy_to_stream

(PHP 5)

stream_copy_to_streamCopies 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($src$dest11024) . " bytes copied to first1k.txt ";
echo 
stream_copy_to_stream($src$dest2) . " bytes copied to remainder.txt ";

?>

参见


«  stream_context_set_params
» stream_encoding
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