PDO connection works from command line, but not through Apache?

Question

I have a very simple test script:

Answer 1

Same issue but different cause here
My solution was just a simple apt-get install php-mysql away

Be sure to check for pdo_mysql in your phpinfo()
Found it on this post : PDOException “could not find driver”

I wonder why CLI worked in such conditions O_o Maybe something installed incorrectly, or got overriden ? Well, now, it works fine !