rewrite ^/app_dev\.php/?(.*)$ /$1 permanent;

location / {
    index app_dev.php;
    try_files $uri @rewriteapp;
}

location @rewriteapp {
    rewrite ^(.*)$ /app_dev.php/$1 last;
}

location ~ ^/(app|app_dev|config|install)\.php(/|$) {
    fastcgi_pass 127.0.0.1:9000;
    fastcgi_split_path_info ^(.+\.php)(/.*)$;
    include fastcgi_params;
    fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
}