how to remove index php in codeigniter

1<?php 
2#By default, the index.php file will be included in your URLs:
3  
4# Create a .htaccess file in your root folder and paste the below code 
5RewriteEngine On
6RewriteCond %{REQUEST_FILENAME} !-f
7RewriteCond %{REQUEST_FILENAME} !-d
8RewriteRule ^(.*)$ index.php/$1 [L]
9?>

11. Change $config['index_page'] = "index.php" to $config['index_page'] = "" in config.php
22. Change $config['uri_protocol'] ="AUTO" to $config['uri_protocol'] = "REQUEST_URI" in config.php
33. Create .htaccess file in root dir of your application and paste the following code
4  	RewriteEngine on
5	RewriteCond $1 !^(index\.php|resources|robots\.txt)
6	RewriteCond %{REQUEST_FILENAME} !-f
7	RewriteCond %{REQUEST_FILENAME} !-d
8	RewriteRule ^(.*)$ index.php/$1 [L,QSA]  

1#in apache mod rewrite is disabled
2a2enmod rewrite

1RewriteEngine on
2RewriteCond $1 !^(index\.php|resources|robots\.txt)
3RewriteCond %{REQUEST_FILENAME} !-f
4RewriteCond %{REQUEST_FILENAME} !-d
5RewriteRule ^(.*)$ index.php/$1 [L,QSA] 

1# Only for Nginx server
2location / {
3    try_files $uri $uri/ /index.php$is_args$args;
4}

1RewriteEngine On
2RewriteCond %{REQUEST_FILENAME} !-f
3RewriteCond %{REQUEST_FILENAME} !-d
4RewriteRule ^(.*)$ index.php/$1 [L]