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(PHP 5, PHP 7, PHP 8)
stream_copy_to_stream — Copies data from one stream to another
$from,$to,$length = null,$offset = 0
Makes a copy of up to length bytes
of data from from to to,
starting at the current position in from, or at
offset if it is greater than 0.
If length is null, all remaining content in
from will be copied.
fromThe source stream
toThe destination stream
lengthMaximum bytes to copy. By default all bytes left are copied.
offset
If greater than 0, the position in
from, counted from the start of the stream,
at which to start copying: from is first moved
to that position, as with fseek() and
SEEK_SET.
If 0 (the default) or negative, no seek is
performed and copying starts at the current position in
from.
Returns the total count of bytes copied,Bei einem Fehler wird false zurückgegeben..
| Version | Beschreibung |
|---|---|
| 8.0.0 |
length is now nullable.
|
Beispiel #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";
?>Hinweis:
When
fromis a socket stream in blocking mode, copying stops as soon as no data is received within the stream timeout, even if the end of the stream has not been reached.falsemay then be returned, even though the data read until then has already been written toto. This timeout defaults to default_socket_timeout and can be changed with stream_set_timeout().
