Why am I Getting a 'PDOException: Could Not Find Driver' Error When Connecting to PostgreSQL in Laravel?

Laravel Error: "PDOException: Could Not Find Driver in PostgreSQL"

When attempting to connect to a PostgreSQL database through Laravel for a migration task, an error may occur indicating that the database driver could not be found. This issue stems from Laravel's inability to identify the PostgreSQL connection parameters in the database configuration.

To resolve this error, ensure that the 'default' key is properly configured in the 'app/config/database.php' file. For PostgreSQL, this key should be set to 'default' => 'postgres'.

Moreover, verify that the necessary PHP extensions for PostgreSQL are installed and enabled. Specifically, the 'pdo_pgsql.so' and 'pgsql.so' extensions are required. Instructions for installing and enabling these extensions vary across different operating systems.

On Windows systems, these extensions should be pre-downloaded with the official PHP distribution. To activate them, edit the 'php.ini' file and uncomment the lines:

extension=pdo_pgsql.so
extension=pgsql.so

Furthermore, confirm that the 'extension_dir' parameter in 'php.ini' points to the correct PHP extensions directory, typically located in the 'extensions' or 'ext' folder within the PHP installation path.

If the issue persists, copy the 'libpq.dll' file from 'C:wampbinphpphp5.' to 'C:wampbinapachebin' and restart all WAMPServer services.

As a last resort, add the PostgreSQL bin directory to the system PATH by following these steps:

1. Open 'System Properties' -> 'Advanced' tab -> 'Environment Variables'.
2. In 'System variables', scroll to the 'PATH' entry.
3. Edit the existing path by adding the full path to your PostgreSQL bin directory at the end.
4. Restart the command prompt or restart the computer.

These steps should resolve the 'PDOException: could not find driver' error. For further guidance, refer to the following resources:

• [Installing PECL Extensions on Windows](http://php.net/manual/en/install.pecl.windows.php)
• [PHP Extension Setup](http://webcheatsheet.com/php/install_and_configure.php#extsetup)

The above is the detailed content of Why am I Getting a 'PDOException: Could Not Find Driver' Error When Connecting to PostgreSQL in Laravel?. For more information, please follow other related articles on the PHP Chinese website!