stream_copy_to_stream

(PHP 5, PHP 7)

Copies data from one stream to another

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.

Parameters:

source

The source stream

dest

The destination stream

maxlength

Maximum bytes to copy

offset

The offset where to start to copy data

Returns:

Returns the total count of bytes copied.

Changelog:

5.1.0

Added the offset parameter

Examples:

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";
 
?>