ngx_http_core_post_rewrite_phase  508 http/ngx_http.c                 ph->checker = ngx_http_core_post_rewrite_phase;
ngx_http_core_post_rewrite_phase  449 http/ngx_http_core_module.h ngx_int_t ngx_http_core_post_rewrite_phase(ngx_http_request_t *r,