 <p>The issue had to do with Uniform Server's (WAMP) setup php.ini file</p> <p>Uniform Server has a SEPARATE file for command line php commands.</p> <p>The name is php-cli.ini</p> <p>I added there the following two lines and everything was ok:</p> <pre><code>extension=php_pdo_mysql.dll extension=php_mbstring.dll </code></pre>