title: Symfony 3 dont find pdo_mysql driver
body: <p>My symfony project do not find pdo_mysql driver. I am using debian server. The same config works on OSX ok but not here. When I use php -m command it show driver and also the php -i |grep pdo_mysql show:</p>
  
  <pre><code>/etc/php/7.0/cli/conf.d/20-pdo_mysql.ini,
  API Extensions =&gt; mysqli,pdo_mysql
  pdo_mysql
  pdo_mysql.default_socket =&gt; /var/run/mysqld/mysqld.sock =&gt;     /var/run/mysqld/mysqld.sock
  </code></pre>
  
  <p>This is my symfony configuration and paramters:</p>
  
  <pre><code>parameters:
  database_host: 127.0.0.1
  database_port: 3306
  database_name: bisol_time
  database_user: root
  database_password: root
  </code></pre>
  
  <p>Config:</p>
  
  <pre><code>doctrine:
  dbal:
      driver:   pdo_mysql
      host:     "%database_host%"
      port:     "%database_port%"
      dbname:   "%database_name%"
      user:     "%database_user%"
      password: "%database_password%"
      charset:  UTF8
  </code></pre>
  
  <p>So what can i do. I try everything and read every topic under this problem but i do not find the solution. Can anyone help me?</p>