nginx rewrite rules for Codeigniter are not working correctly

Question

I am trying to use nginx server in MAMP instead of apache server for Codeigniter for the first time. I converted my apache htaccess rewrite rules to nginx rewrite rules. But it is showing index.php file code from my file not my website. Here is my apache htaccess rules,

DirectoryIndex index.php
RewriteEngine on
RewriteCond $1 !^(index\.php|images|css|js|robots\.txt|favicon\.ico)
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ ./index.php/$1 [L,QSA]

And here is my nginx configuration file,

http {
include                  mime.types;
default_type             text/html;
gzip                     on;
gzip_types               text/css text/x-component application/x-javascript application/javascript text/javascript text/x-js text/richtext image/svg+xml text/plain text/xsd text/xsl text/xml image/x-icon;

sendfile                 on;

server {
    listen               80 default_server;

    # MAMP DOCUMENT_ROOT !! Don't remove this line !!
    root "C:/MAMP/htdocs/aia_inventory/";

    access_log  C:/MAMP/logs/nginx_access.log;

    error_log  C:/MAMP/logs/nginx_error.log;

    index index.html index.htm index.php;
    #autoindex on;
    #server_name localhost;
    location ~/ {
        #root C:/MAMP/htdocs/aia_inventory/;
        #index index.html index.php;
        try_files $uri $uri/ /index.php/$request_uri;

        if (!-e $request_filename){
            rewrite ^/(.*)$ /index.php?/$1 last;
            break;
        }
    }

    location ~* ^/(assets|files|robots\.txt) { }

    location ~* /MAMP(.*)$ {
    root             C:/MAMP/bin;
        index            index.php;

        location ~ \.php$ {
            try_files        $uri =404;
            fastcgi_pass     127.0.0.1:9100;
            fastcgi_param    SCRIPT_FILENAME $document_root$fastcgi_script_name;
            include          fastcgi_params;
        }
    }

    location ~* /phpMyAdmin(.*)$ {
    root             C:/MAMP/bin;
        index            index.php;

        location ~ \.php$ {
            try_files        $uri =404;
            fastcgi_pass     127.0.0.1:9100;
            fastcgi_param    SCRIPT_FILENAME $document_root$fastcgi_script_name;
            include          fastcgi_params;
        }
    }

    location ~* /phpLiteAdmin(.*)$ {
    root             C:/MAMP/bin;
        index            phpliteadmin.php index.php;

        location ~ \.php$ {
            try_files        $uri =404;
            fastcgi_pass     127.0.0.1:9100;
            fastcgi_param    SCRIPT_FILENAME $document_root$fastcgi_script_name;
            include          fastcgi_params;
        }
    }

    location ~* /SQLiteManager(.*)$ {
    root             C:/MAMP/bin;
        index            index.php;

        location ~ \.php$ {
            try_files        $uri =404;
            fastcgi_pass     127.0.0.1:9100;
            fastcgi_param    SCRIPT_FILENAME $document_root$fastcgi_script_name;
            include          fastcgi_params;
        }
    }

    #location /icons {
    #   alias /Applications/MAMP/Library/icons;
    #   autoindex on;
    #}

    #location /favicon.ico {
    #   alias /Applications/MAMP/bin/favicon.ico;
    #    # log_not_found off;
    #    # access_log off;
    #}

    location ~ \.php$ {
        try_files        $uri =404;
        fastcgi_pass     127.0.0.1:9100;
        fastcgi_param    SCRIPT_FILENAME $document_root$fastcgi_script_name;
        include          fastcgi_params;
    }

    #location ~ /\. {
    #   deny all;
    #}

    # location ~* \.(gif|jpg|png|pdf)$ {
    #   expires          30d;
    # }

    # location = /robots.txt {
    #   allow all;
    #   log_not_found off;
    #   access_log off;
    # }

    # location ~* \.(txt|log)$ {
    #   allow 127.0.0.1;
    #   deny all;
    # }

    # location ~ \..*/.*\.php$ {
    #   return 403;
    # }

    #location /nginx_status {
    #   stub_status      on;
    #   access_log       off;
    #   allow            127.0.0.1;
    #   deny             all;
    #}
}
}

I am not understanding where am I missing. My rules are working on apache server. But on nginx server, it shows only index.php file raw code. Thanks in advance.

Answer 1

Using .htaccess isn't much secure, prefer to set in the sites-enable or conf.d directory in a .conf file. I recommend you to put like this:

    sendfile on;
    send_timeout 300s;
    location / {
            # First attempt to serve request as file, then
            # as directory, then fall back to displaying a 404.
            try_files $uri $uri/ /index.php?$args;
            # try_files $uri $uri/ =404;
    }

    # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
    #
    location ~ \.php$ {
            include snippets/fastcgi-php.conf;

            # With php7.0-cgi alone: // in your case is 9100
            fastcgi_pass 127.0.0.1: 9100;
            # With php7.0-fpm:
            # fastcgi_pass unix:/run/php/php7.1-fpm.sock;
    }

    # deny access to .htaccess files, if Apache's document root
    # concurs with nginx's one
    #
    location ~ /\.ht {
            deny all;
    }