Hello recently I Upgraded my SO from 16.x to 22.04 also I upgraded the PHP version at same time from 7.2 to 7.4 … 8.x and I installed some extensions for PHP, but im having issues with SSH2.so im getting this error
Here are the steps to troubleshoot the “unable to load dynamic library ssh2.so” error in PHP:
1. Check Installation and Configuration:
Verify Installation: Ensure the SSH2 extension is installed. If not, install it using your system’s package manager (e.g., apt-get install php7.4-ssh2 for Debian/Ubuntu).
Enable Extension: If installed, enable it in your php.ini file by removing the semicolon before extension=ssh2.so.
Locate Extension: Make sure the ssh2.so file is in the correct directory, usually in /usr/lib/php/modules/ or /usr/lib64/php/modules/.
2. Check File Permissions:
The PHP process needs read permissions for the ssh2.so file. Use chmod +r to grant read permissions if necessary.
3. Verify Architecture Compatibility:
Match the library’s architecture (32-bit or 64-bit) with your PHP version. Use php -i | grep Architecture to check PHP’s architecture.
4. Address Missing Dependencies:
Install any required external libraries (e.g., libssh2-1-dev on Debian/Ubuntu).
5. Resolve Conflicts:
Temporarily disable other extensions to rule out conflicts.
6. Specific Environment Troubleshooting:
WAMP: Ensure you’re using the Thread Safe (TS) version of SSH2 that matches your PHP version and architecture.
XAMPP: Check for a separate configuration file for the PHP CLI (command-line interface).
7. Additional Checks:
File Path: Verify the file path in the error message matches the actual location of ssh2.so.
PHP Version Compatibility: Confirm the SSH2 extension is compatible with your PHP version.
Web Server Restart: Restart your web server after any changes.
8. Provide Specific Details of the Environment:
Provide more details about your environment (operating system and version, PHP version, web server and version, installation method) for help.
