I find the documents frustrating. What are the basic lines I need to add to my config file to get it working?
Technically, nothing. If you've extracted Syntastic into your .vim directory, try using the :SyntasticEnable command within Vim to enable it for the filetype of the currently open file.
If you want to automatically turn it on for a given filetype, then you'll want to put a...
SyntasticEnable [filetype]
line in your .vimrc where [filetype] is the type of file you want to enable it for.
来源：https://stackoverflow.com/questions/2368208/syntastic-for-vim-what-are-the-required-lines-in-vimrc-php-error-checking