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Package php-ssh-connection
Short Description Provides an elegant syntax to connect to SSH servers and execute commands.
License LGPL-3.0-only
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Informations about the package php-ssh-connection
PHP SSH Connection
The PHP SSH Connection package provides an elegant syntax to connect to SSH servers and execute commands. It supports password and public-private key authentication, and can capture command output and errors.
Supported runtimes: PHP 7.2+ and PHP 8.x.
Installation
Install with Composer:
Usage
Running multiple commands
Each run() call executes in a fresh shell context. If you need stateful command execution (for example cd then touch), use runCommands():
Fingerprint verification
For security, obtain the server's SHA-256 fingerprint through a trusted out-of-band channel and configure it before connecting. Verification happens before a password or private key is sent to the server.
The SHA256: prefix and base64 padding are optional when configuring the
expected value. MD5 values may be supplied with or without colons.
Available fingerprint types:
SHA-256 and MD5 match the standard OpenSSH fingerprint algorithms. SHA-1 and
SHA-512 remain available as hexadecimal hashes of the SSH wire key for callers
that previously selected those constants. The no-argument fingerprint() call
still defaults to MD5 for source compatibility; SHA-256 is recommended for new
code.
Private key passphrases
Pass a private-key passphrase as the second argument for either file or string keys:
Timeouts
timeout() now applies to the initial socket connection and authentication as
well as subsequent command and SFTP activity. A timeout of zero disables the
operation timeout; negative values are rejected.
File transfer safety
Uploads and downloads both use SFTP. Recursive directory downloads refuse to follow remote symbolic links, preventing cycles and unexpected traversal outside the requested tree.
Compatibility
PHP 7.2 through the current PHP 8.x releases are supported. Version 5 uses the actively maintained phpseclib 3.x line.
Upgrading to 5.0
- Composer now installs phpseclib 3.x instead of 2.x.
- MD5 and SHA-256 fingerprints now use standard OpenSSH representations rather than hashes of a truncated host-key string.
- Uploads use SFTP instead of the removed phpseclib 2 SCP client.
- Empty hostnames/usernames, out-of-range ports, negative timeouts, invalid key passphrases, and recursive remote symbolic links now fail explicitly.
Testing
The package test suite includes SSH integration tests. Set these variables before running tests:
RUN_SSH_INTEGRATION_TESTS=1SSH_TEST_HOSTSSH_TEST_PORTSSH_TEST_USERSSH_TEST_PRIVATE_KEY_PATHorSSH_TEST_PRIVATE_KEY_CONTENTSSSH_TEST_PASSWORD(only required for password-auth test)
Then run:
