Rewrite all requests to index.php with nginx

In my apache configuration I have the following simple rewrite rule which

1. unless file exists will rewrite to index.php
2. on the urls you never see the file extension (.php)

how can I rewrite this in nginx?

#
# Redirect all to index.php
#
RewriteEngine On

# if a directory or a file exists, use it directly
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d

RewriteCond %{REQUEST_URI} (/[^.]*|\.)$ [NC]
RewriteRule .* index.php [L]

Here's how my nginx server block looks like now, but it doesn't work :(

root /home/user/www;
index index.php;

# Make site accessible from http://localhost/
server_name some-domain.dev;


###############################################################
# exclude /favicon.ico from logs
location = /favicon.ico {
    log_not_found off;
    access_log off;
}   

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

##############################################################
# Deny all attempts to access hidden files such as 
# .htaccess, .htpasswd, .DS_Store (Mac).
location ~ /\. {
    deny all;
    access_log off;
    log_not_found off;
}   

##############################################################
#   
location / { 
    include /etc/nginx/fastcgi_params;
    fastcgi_param   SCRIPT_FILENAME  $document_root/index.php$args;
    fastcgi_pass    127.0.0.1:9000;
}   

###############################################################
# serve static files directly
location ~* ^.+.(jpg|jpeg|gif|css|png|js|ico)$ {
    access_log off;
    expires    30d;
}   

###############################################################
# redirect server error pages to the static page /50x.html
error_page   500 502 503 504  /50x.html;
location = /50x.html {
    root html;
}   

# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
#   
location ~ \.php$ {
    fastcgi_split_path_info ^(.+\.php)(/.+)$;
    # NOTE: You should have "cgi.fix_pathinfo = 0;" in php.ini
    # With php5-cgi alone:
    fastcgi_pass 127.0.0.1:9000;
    fastcgi_index index.php;
    include fastcgi_params;
}

I have tried this and succeeded to get my index page. When I have added this code in my site configuration file:

location / {
    try_files $uri $uri/ /index.php;
}

Inside the configuration file itself it is explained that these are the configured steps

> First attempt to serve request as file, > then as directory, > then fall back to index.html

In my case it is index.php, as I am providing page through php code.

To pass get variables as well use $args:

location / {
	try_files $uri $uri/ /index.php?$args;
}

1 unless file exists will rewrite to index.php

Add the following to your location ~ \.php$

try_files = $uri @missing;

this will first try to serve the file and if it's not found it will move to the @missing part. so also add the following to your config (outside the location block), this will redirect to your index page

location @missing {
    rewrite ^ $scheme://$host/index.php permanent;
}

---

2 on the urls you never see the file extension (.php)

to remove the php extension read the following: http://www.nullis.net/weblog/2011/05/nginx-rewrite-remove-file-extension/

and the example configuration from the link:

location / {
    set $page_to_view "/index.php";
    try_files $uri $uri/ @rewrites;
    root   /var/www/site;
    index  index.php index.html index.htm;
}

location ~ \.php$ {
    include /etc/nginx/fastcgi_params;
    fastcgi_pass  127.0.0.1:9000;
    fastcgi_index index.php;
    fastcgi_param SCRIPT_FILENAME /var/www/site$page_to_view;
}

# rewrites
location @rewrites {
    if ($uri ~* ^/([a-z]+)$) {
        set $page_to_view "/$1.php";
        rewrite ^/([a-z]+)$ /$1.php last;
    }
}

Flat and simple config without rewrite, can work in some cases:

location / {
    fastcgi_pass unix:/var/run/php5-fpm.sock;
    include fastcgi_params;
    fastcgi_param SCRIPT_FILENAME /home/webuser/site/index.php;
}

Using nginx $is_args instead of ? For GET query Strings

location / { try_files $uri $uri/ /index.php$is_args$args; }

Here's the answer of your 2nd question :

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

it's work for me (based my experience), means that all of your blabla.php will rewrite into blabla

like http://yourwebsite.com/index.php to http://yourwebsite.com/index

Here is what worked for me to solve part 1 of this question:

    location / {
            rewrite ^([^.]*[^/])$ $1/ permanent;
            try_files $uri $uri/ /index.php =404;
            include fastcgi_params;
            fastcgi_pass php5-fpm-sock;
            fastcgi_index index.php;
            fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
            fastcgi_intercept_errors on;
    }

rewrite ^([^.]*[^/])$ $1/ permanent; rewrites non-file addresses (addresses without file extensions) to have a "/" at the end. I did this because I was running into "Access denied." message when I tried to access the folder without it.

try_files $uri $uri/ /index.php =404; is borrowed from SanjuD's answer, but with an extra 404 reroute if the location still isn't found.

fastcgi_index index.php; was the final piece of the puzzle that I was missing. The folder didn't reroute to the index.php without this line.

If you want to pass just the index.php ( no other php file will be passed to fastcgi ) to fastcgi in case you have routes like this in a framework like codeigniter

$route["/download.php"] = "controller/method";


location ~ index\.php$ {
        fastcgi_pass 127.0.0.1:9000;
        include fastcgi.conf;
}