nginx.conf

server {
    server_name ~^(?<project>.*)\.localhost$;
    root        /var/www/repos/$project/web;
    index       app_dev.php;
        
    location ~ \.php($|/) {
        include fastcgi_params;
        fastcgi_pass unix:/var/run/php5-fpm.sock;
    }   

    location / { 
        try_files $uri $uri/ /app_dev.php$uri?$args;
    }   
}