bmacnaughton

I run php -a so I have an interactive shell to work with. I've tried to include('./index.php'); per the instructions at https://processwire.com/api/include/ but I get the following error: Fatal error: Undefined class constant 'MYSQL_ATTR_INIT_COMMAND' in /.../wire/core/WireDatabasePDO.php on line 83. Any ideas? Will it just not work in the interactive shell?