一旦Nginx检测到错误，有没有办法从php访问服务器响应，并将服务器响应邮寄给pipe理员，同时向访问者显示自定义错误页面？
目前我能够委托错误页面到PHP，从那里我可以发送一封邮件给pipe理员与我从nginx获得的有关请求的信息，但它检测到所有的GET请求，丢失所有的POST信息，我发现没办法访问实际的响应，所以我可以邮件给pipe理员，所以基本上我发送了一个关于错误的非常不完整的报告。
有没有办法不松动POST信息，一旦请求委托给PHP，从服务器读取响应？ 有没有其他的方式来邮件的错误页面，同时显示自定义的错误页面？
这是我当前的nginx设置（连接到error_page子句的GET参数是我发现将一些信息传递给PHP的唯一方法，以便生成错误的后端服务器）：
location / { proxy_set_header Host $host; proxy_set_header X-Forwarded-For $remote_addr; proxy_connect_timeout 4s; proxy_pass $scheme://hsbservers_$scheme; proxy_next_upstream error timeout invalid_header http_502 http_504; proxy_intercept_errors on; server_tokens off; } error_page 500 503 502 504 /error.php?err=$status&svr=$upstream_addr&uperr=$upstream_status&sT=$upstream_response_time&pT=$request_time; location ~ error\.php$ { try_files $uri /index.php; fastcgi_split_path_info ^(.+\.php)(/.+)$; fastcgi_pass unix:/var/run/php5-fpm.sock; fastcgi_index index.php; include fastcgi_params; }
这是我从PHP发送的一个POST请求产生错误的电子邮件的例子：
_SERVER Array ( [USER] => www-data [HOME] => /var/www [FCGI_ROLE] => RESPONDER [QUERY_STRING] => err=500&svr=45.79.216.211:443&uperr=500&sT=1.476&pT=1.610 [REQUEST_METHOD] => GET [CONTENT_TYPE] => multipart/form-data; boundary=----WebKitFormBoundarydq4hsdTNEzIU6Vve [CONTENT_LENGTH] => 9550 [SCRIPT_FILENAME] => /usr/share/nginx/html/error.php [SCRIPT_NAME] => /error.php [REQUEST_URI] => /node/add/article [DOCUMENT_URI] => /error.php [DOCUMENT_ROOT] => /usr/share/nginx/html [SERVER_PROTOCOL] => HTTP/1.1 [GATEWAY_INTERFACE] => CGI/1.1 [SERVER_SOFTWARE] => nginx/1.4.6 [REMOTE_ADDR] => 181.49.223.170 [REMOTE_PORT] => 42033 [SERVER_ADDR] => 172.31.55.210 [SERVER_PORT] => 443 [SERVER_NAME] => _ [HTTPS] => on [REDIRECT_STATUS] => 200 [HTTP_HOST] => hsbnoticias.com [HTTP_CONNECTION] => keep-alive [HTTP_CONTENT_LENGTH] => 9550 [HTTP_CACHE_CONTROL] => max-age=0 [HTTP_ACCEPT] => text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 [HTTP_ORIGIN] => https://hsbnoticias.com [HTTP_UPGRADE_INSECURE_REQUESTS] => 1 [HTTP_USER_AGENT] => Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.116 Safari/537.36 [HTTP_CONTENT_TYPE] => multipart/form-data; boundary=----WebKitFormBoundarydq4hsdTNEzIU6Vve [HTTP_REFERER] => https://hsbnoticias.com/node/add/article [HTTP_ACCEPT_ENCODING] => gzip, deflate [HTTP_ACCEPT_LANGUAGE] => es-ES,es;q=0.8,en;q=0.6 [HTTP_COOKIE] => __utma=25821092.617945397.1386681757.1424269387.1424279038.1469; Akamai_AnalyticsMetrics_clientId=20F2C6C63C0941486F0568FD14A252190904562C; trc_cookie_storage=usatodaydemo%253Asession-data%3Dv2_177fa1cd37c772080393b0e4007ac4e6_582a3853-af49-45d6-9600-d7481e581c4a_1429209499_1429209499_CKLTqAQQkAk%7Ctaboola%2520global%253Auser-id%3D582a3853-af49-45d6-9600-d7481e581c4a; __auc=0f2b68a314c8a0dc7ab8c361ffd; SESSee59450aceeb2ad9ba034cb2ae7af965=sDwitzc8TjB-UrjReaVWF0h5X-MjHHa8xJEBwPyd5fI; SSESSee59450aceeb2ad9ba034cb2ae7af965=ztTP58Pqe1GnuolI2nlm56pWuafDDHlTZHGnVIX-XCg; IBCTY=Bogotá; IBCTR=CO; pa-submit=%20(109-1456229200023; SESSe4f5b902a099a887d938a023f3196d9f=jvAgtxfWQTEdn7brQWvDzLAX0GLKI5rq4AMESZjBpPc; SSESSe4f5b902a099a887d938a023f3196d9f=WDVksh3fUArALczBiCq-BiZYANsiDgn_wUVM2RZ1sr8; _gat=1; _ga=GA1.2.617945397.1386681757; IBPOP=0$|0; __unam=e216ae8-142dcc6664e-75f824f6-43252; has_js=1; Drupal.tableDrag.showWeight=0 [PHP_SELF] => /error.php [REQUEST_TIME_FLOAT] => 1456243321.1031 [REQUEST_TIME] => 1456243321 ) _POST Array ( ) _GET Array ( [err] => 500 [svr] => 45.79.216.211:443 [uperr] => 500 [sT] => 1.476 [pT] => 1.610 )