Module 'PDO' already loaded in Unknown on line 0 in laravel installation on ubuntu

问题

I'm getting this PHP warning when i try to run composer-

Module 'PDO' already loaded in Unknown on line 0

回答1:

Maybe, somewhere in your php.ini you have a duplicated pdo extension inclusion. Open your php.ini and search for extension = "pdo.so" (or simply pdo.so). Remove any duplication found. Restart apache.

来源：https://stackoverflow.com/questions/37292272/module-pdo-already-loaded-in-unknown-on-line-0-in-laravel-installation-on-ubun