php files keep being downloaded like binaries. Why would this be?

nginx.conf

worker_processes  1;

error_log  logs/error.log  debug;

events {
    worker_connections  1024;
}

http {
    include       mime.types;
    default_type  text/html;
    sendfile        on;
    keepalive_timeout  65;

    server {
        listen       8080;
        server_name  localhost;
        root   html;
        location = /favicon.ico {
                        log_not_found off;
                        access_log off;
        }
        location / {

            index  index.html index.htm;
        }
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }

        location ~ \.php$ {
           root           html;
           fastcgi_pass   localhost:9000;
           fastcgi_index  index.php;
           include        fastcgi_params;
        }

    }

    server {
       listen       8080;
       server_name  api.drupal.local;
       root   /Users/chrisadams/Code/drupal-api;

       location / {
           index  index.html index.htm;
       }

       location ~ \.php$ {
          root   /Users/chrisadams/Code/drupal-api;
          fastcgi_pass   localhost:9000;
          fastcgi_index  index.php;
          include        fastcgi_params;
       }           
    }

}