Phalcon+Nginx路由/重写不起作用

我终于在Osx上使用了Phalcon+phpfpm+nginx。。。试图建立一个快速的REST应用程序，我被卡住了，我相信nginx重写。

我总是收到一个路线不匹配的错误。

文件结构：

/myapp/
  public/
    index.php
  app/
    models/
    ...

index.php

<?php
$app = new 'Phalcon'Mvc'Micro();
$app->get('/api/robots', function() {
    echo json_encode(['true']);
});
$app->notFound(function(){
    echo json_encode(['Route Not Found']);
});
$app->handle();

nginx配置文件：

worker_processes  1;
events {
    worker_connections  1024;
}
http {
    include       mime.types;
    default_type  application/octet-stream;
    sendfile        on;
    #tcp_nopush     on;
    keepalive_timeout  65;
    #gzip  on;

server {
    root    /var/www/bmex/public;
    listen       80;
    server_name  some.name.com;
    charset      utf-8;
    #access_log  /var/log/nginx/host.access.log  main;
    set $root_path '/var/www/bmex/public';
    location / {
        root   $root_path;
        index  index.php index.html index.htm;
        # if file exists return it right away
        if (-f $request_filename) {
            break;
        }
        # otherwise rewrite it
        if (!-e $request_filename) {
            rewrite ^(.+)$ /index.php?_url=/$1 last;
            break;
        }
    }
    location ~ '.php {
        # try_files    $uri =404;
        fastcgi_index  /index.php;
        fastcgi_pass   127.0.0.1:9000;
        include fastcgi_params;
        fastcgi_split_path_info       ^(.+'.php)(/.+)$;
        fastcgi_param PATH_INFO       $fastcgi_path_info;
        fastcgi_param PATH_TRANSLATED $document_root$fastcgi_path_info;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
    }
    location ~* ^/(css|img|js|flv|swf|download)/(.+)$ {
        root $root_path;
    }
}
}