php mac folder

Hello, I have a setup question for php for mac. I have shared my windows folder 'wwwroot' across the network but when I preview my .php file it connot find it because the specified php folder on the mac is http://127.0.0.1/~myname/Sites I suppose I have to change the php.ini to include the networked folder as a php location but i cannot find it. I am not so sure of the file system with mac (just got it) and cannot find this folder/usr/local/php5. I can find 'User' and 'myname' folders.Does Mac have a show hidden system folders function like windows?? Any help with how I can run php files on the networked folder or about the mac folder system will be a great help. Thanks, Ross