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<ssh2_execssh2_fingerprint>
^SSH2 FunctionsLast updated: Mon, 26 Oct 2026

ssh2_fetch_stream

(PECL ssh2 >= 0.9.0)

ssh2_fetch_stream — Fetch an extended data stream

Description

function ssh2_fetch_stream(resource $channel, int $streamid): resource

Fetches an alternate substream associated with an SSH2 channel stream. The SSH2 protocol currently defines only one substream, STDERR, which has a substream ID of SSH2_STREAM_STDERR (defined as 1).

Parameters

channel

streamid

An SSH2 channel stream.

Return Values

Returns the requested stream resource.

Examples

Example #1 Opening a shell and retrieving the stderr stream associated with it

<?php
$connection = ssh2_connect('shell.example.com', 22);
ssh2_auth_password($connection, 'username', 'password');

$stdio_stream = ssh2_shell($connection);
$stderr_stream = ssh2_fetch_stream($stdio_stream, SSH2_STREAM_STDERR);
?>

See Also


<ssh2_execssh2_fingerprint>
^SSH2 FunctionsLast updated: Mon, 26 Oct 2026