CodeIgniter removing index.php from url

 Step:-1 Open the folder “application/config” and open the file “config.php“. find and replace the below code in config.php file.

//find the below code   
$config['index_page'] = "index.php" 
//replace with the below code
$config['index_page'] = ""

Step:-2 Go to your CodeIgniter folder and create .htaccess (inshort in root folder)(dont forget to take backup if .htaccess is already exist.)

Path:
Your_website_folder/
application/
assets/
system/
.htaccess <——— this file
index.php

Step:-3 Write below code in .htaccess file

<IfModule mod_rewrite.c>
RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php/$1 [L] 
</IfModule>

Step:-4 In some case the default setting for uri_protocol does not work properly. To solve this problem just open the file “application/config/config.php“, then find and replace the below code

//Not needed for CodeIgniter 3 its already there.
//find the below code
$config['uri_protocol'] = "AUTO"
//replace with the below code
$config['uri_protocol'] = "REQUEST_URI" 

Clear cache and check it without index.php in url