Silverstripe nginx config

silverstripe.conf

server {
    listen 80;
    server_name example.com;
    root /var/www/example.com;
    error_log /var/log/example.com/error.log;
    access_log /var/log/example.com/access.log;

    location / {
        try_files $uri @silverstripe;
    }

    location ~ ^/(index|install).php {
        fastcgi_split_path_info ^((?U).+\.php)(/?.+)$;
        include fastcgi_params;
        fastcgi_pass unix:/var/run/php5-fpm.sock;
    }

    # whitelist php files that are called directly and need to be interpreted
    location = /framework/thirdparty/tinymce/tiny_mce_gzip.php {
        include fastcgi_params;
        fastcgi_pass unix:/var/run/php5-fpm.sock;
    }

    location = /framework/thirdparty/tinymce-spellchecker/rpc.php {
        include fastcgi_params;
        fastcgi_pass unix:/var/run/php5-fpm.sock;
    }

    location @silverstripe {
        expires off;
        include fastcgi_params;
        fastcgi_pass unix:/var/run/php5-fpm.sock;
        fastcgi_param SCRIPT_FILENAME $document_root/framework/main.php;
        fastcgi_param SCRIPT_NAME /framework/main.php;
        fastcgi_param QUERY_STRING url=$uri&$args;
        fastcgi_buffers 4 32k;
        fastcgi_busy_buffers_size 64k;
    }

    #
    # Error Pages
    #
    error_page 503 @maintenance;

    if (-f $document_root/maintenance.html ) {
        return 503;
    }

    location @maintenance {
        try_files /maintenance.html =503;
    }

    error_page 500 /assets/error-500.html;

    #
    # Deny access to protected folder/files
    #
    location ^~ /assets/ {
        try_files $uri =404;
    }

    location ^~ /silverstripe-cache/ {
        deny all;
    }

    location ^~ /vendor/ {
        deny all;
    }

    location ~ /composer\.(json|lock) {
        deny all;
    }

    location ~ /(\.|web\.config) {
        deny all;
    }

    location ~ \.(yml|bak|swp)$ {
        deny all;
    }

    location ~ ~$ {
        deny all;
    }

    location ~ \.(php|php[345]|phtml|inc)$ {
        deny all;
    }

    location ~ ^/(cms|framework)/silverstripe_version$ {
        deny all;
    }

}

I've now resolved this issue thanks to simon_w on IRC. I had one PHP file which started with <? instead of <?php - I fixed this and lo and behold nginx working again :) As such disregard above query.