PostgreSql 'PDOException' with message 'could not find driver'

Question

pdo is working fine with mysql but with pgsql its giving error \'PDOException\' with message \'could not find driver\' I\'ve installed php5-pgsql p

Answer 1

Make sure you've uncommented the line that tells php where the Postgres driver is (usually extension=pgsql.so) in the main php.ini file.

Answer 2

I had the same issue. First of all - check is it enabled in php.ini. Uncomment extension=php_pdo_pgsql...

than set up extension directory!!

extension_dir = "ext" ; for your case it could be other dir.

and do not forget to restart server after changing the config.

Answer 3

Copy libpq.dll from the PHP directory to Apache24\bin (or wherever your installation could be).

Answer 4

When you do not have postgresql installed on the same machine that is Apache and PHP; you have to install php-pgsql and don't have to add extensions in php.ini manually in Linux (in Windows yes), because redundancies are generated and this does not work (checked in error.log).

$ sudo apt install php-pgsql

Then you can check the existence of the extension enabled automatically in:

$ sudo nano /etc/php/7.0/apache2/conf.d/10-pdo.ini

Observations: In phpinfo() you will find the directory conf.d/ and the file error.log

GL

Answer 5

This message means you need to install and or activate postgresql extension in PHP

This solution works for me : To install postgresql extension

[sudo] apt-get install php-pgsql

after, for activating it, uncomment pgsql and pdo-pgsql extensions in etc/php/$PHP_VERSION/apache2/php.ini file

Finally, type :

[sudo] /etc/init.d/apache2 restart

To restart apache server if you use apache such as was my case...

Answer 6

I had the same problem with another solution. I lost my around 4 hours to solve this problem. Please check the following to solve this problem.

1. Check php.ini file and remove semicolon from this line

   extension=pgsql

   extension=pdo_pgsql

2. Restart your apache2 server

   sudo service apache2 restart

3. Check if your PDO driver has updated in localhost phpinfo()

I did All the things right and still I had this problem. And you know why? Because I had several versions of php installed. So I was running php7.4 in my php cli but localhost was running on php7.2. So always check your php versions.

4. Check your php version on localhost and terminal cli