yii2如何隐藏index.php

user  centos;
worker_processes  4; 
error_log  
logs/error.log; 
pid        logs/nginx.pid; 
 
events {    
worker_connections  10240;
} 
 
http {    include       mime.types;    
default_type  application/octet-stream; 
    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '                      
    '$status $body_bytes_sent "$http_referer" '                      
    '"$http_user_agent" "$http_x_forwarded_for"'; 
    log_format log_json '{ "@timestamp": "$time_local", '                        
    '"remote_addr": "$remote_addr", '                        
    '"referer": "$http_referer", '                        
    '"request": "$request", '                        
    '"status": $status, '                        
    '"bytes": $body_bytes_sent, '                        
    '"agent": "$http_user_agent", '                       
    '"x_forwarded": "$http_x_forwarded_for", '                        
    '"up_addr": "$upstream_addr",'                        
    '"up_host": "$upstream_http_host",'                        
    '"up_resp_time": "$upstream_response_time",'                        
    '"request_time": "$request_time"'                        
    ' }'; 
 
   access_log  logs/access.log; 
    sendfile        on;    #tcp_nopush     on; 
    #keepalive_timeout  0;    keepalive_timeout  200;        
    client_max_body_size 200M;    gzip  on; 
        include vhost/*.conf;
}

server {        listen  80;        
server_name     域名; 
        # 项目 index.php 地址        
        root /home/centos/www/youdai-api/bird/web; 
        access_log logs/youdaiApi.access.log log_json;        
        error_log logs/youdaiApi.error.log; 
        location / {                
        try_files $uri $uri/ /index.php?$args;                
        index   index.php;
        } 
        location ~ \.php$ {                
        fastcgi_pass 127.0.0.1:9000;                
        fastcgi_index index.php;                
        fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;                
        include fastcgi_params;
        } 
        location ~ /\.ht {                
        deny all;
        }
}

RewriteEngine on
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ index.php?/$1 [QSA,PT,L]