title: Pear DB Error: extension not found
body: <p>I am still new to php and linux but i try to give you all information I know.
  We got a PHP web application using pear and smarty. It's runing on PHP 4 on a Linux system and with XAMP and PHP5 on my PC. I am trying to move the application on a new server with PHP7 and updated PEAR and all extensions (it's the same version as on XAMP), but all I get is: DB Error: extension not found. 
  I tried to find a solution but wasn't able to find anything which could help me.
  The database we are using is a normal mysql database.
  I'm not sure if there is still a path missing or what went wrong.</p>
  
  <p>Maybe someone of you got a clue what the problem could be. </p>