stream_copy_to_stream
(PHP 5, PHP 7, PHP 8)
stream_copy_to_stream — Copies data from one stream to another
Description
stream_copy_to_stream(
resource
resource
?int
int
): int|false
resource
$from,resource
$to,?int
$length = null,int
$offset = 0): int|false
Makes a copy of up to length bytes
of data from the current position (or from the
offset position, if specified) in
from to to. If
length is null, all remaining content in
from will be copied.
Parameters
-
from -
The source stream
-
to -
The destination stream
-
length -
Maximum bytes to copy. By default all bytes left are copied.
-
offset -
The offset where to start to copy data
Return Values
Returns the total count of bytes copied, or false on failure.
Changelog
| Version | Description |
|---|---|
| 8.0.0 |
length is now nullable.
|
Examples
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";
?>
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