CodeIgniter 404 Page Not Found but why

Question

I am using CodeIgniter for two applications  a public and an admin app   The important elements of the document structure are    admin  admin  htaccess  admin index html  application  application admin  application public  system  htaccess index php   The  admin  htaccess file looks like this    DirectoryIndex index php RewriteEngine on RewriteCond   REQUEST FILENAME   -f RewriteCond   REQUEST FILENAME   -d RewriteRule          index php  1  L QSA    The  admin index php has the following changes    system folder       system    application folder       application admin    this line exists of course twice    And the  application admin config routes php contains the following     route  default controller      welcome    route  admin      welcome     Welcome is my default controller   When I call up the Domain admin I get a 404 Page Not Found error  When I call up the Domain admin welcome everything works fine  In the debug logs I get the following error message    DEBUG - 2010-09-20 16 27 34 -- gt  Config Class Initialized DEBUG - 2010-09-20 16 27 34 -- gt  Hooks Class Initialized DEBUG - 2010-09-20 16 27 34 -- gt  URI Class Initialized ERROR - 2010-09-20 16 27 34 -- gt  404 Page Not Found -- gt  admin   Weirdly enough this setup works perfectly on my local MAMP installation  with the localdomain admin    but when I publish and test it on the  live  server  I just get 404 errors    Any ideas  What am I doing wrong  Thanks C

User · Accepted Answer

The cause of the problem was that the server was running PHP using FastCGI   After changing the config php to   config  uri protocol      REQUEST URI     everything worked

User · Answer

Change your controller name first letter to uppercase  Change your url same as your controller name    e g   Your controller name is YourController  Your url must be   http   example com index php YourController method  Not be   http   example com index php yourcontroller method

User · Answer

It happens cause of multiple reasons but the answer missing above there s the  className  while extending your controller    Make sure your class name is the same as your controller name is your controllers  e g   If your controller name is Settings php  you must extend the controller like   class Settings extends CI Controller      some actions like         public function   construct            and so and so

User · Answer

In my case I was using it on localhost and forgot to change RewriteBase in  htaccess

User · Answer

If your application is in sub-folder then the Folder name in directory and URL must be same  case-sensitive

User · Answer

I had the same issue after migrating to a new environment and it was simply that the server didn t run mod rewrite  a quick sudo a2enmod rewrite then sudo systemctl restart apache2  and problem solved     Thanks  fanis who pointed that out in his comment on the question

User · Answer

Leaving this answer here for others who ran into my situation   My codeigniter app was working fine in localhost WAMP  but was unable to route and produced 404 not found errors when pushing to an AWS EC2 instance  My issue was solved from the answer from HERE htaccess works in localhost but doesn  39 t work in EC2 instance   route to my admin page   domain  admin was producing 404  the  etc httpd conf httpd conf file needs to be modified    -after every instance of  DocumentRoot   var www html    2 places   AllowOverride None  needed to be changed to  AllowOverride All    Restarted the EC2 instance from the AWS dashboard    domain  admin is now accessible and working as intended   hope this helps someone else like it helped me

User · Answer

You could try one of two things or a combination of both    Be sure that your controller s name starts with a capital letter  eg  Mycontroller php  If you have not made any changes to your route  for some strange reason  you might have to include capital letters in your url  e g if your controller is  Mycontroller php  with a function named  testfunc  inside it  then your url will look like this   http   www yourdomain index php Mycontroller testfunc   Note the capital letter   I m assuming you haven t added the htaccess file to remove the  index php  part  If you have  just remove it from the url     I hope this helps someone

User · Answer

we have to give the controller name in lower cases in server side   this- gt class   strtolower   CLASS

User · Answer

Your folder file structure seems a little odd to me  I can t quite figure out how you ve got this laid out      Hello I am using CodeIgniter for two applications  a public and an admin app     This sounds to me like you ve got two separate CI installations  If this is the case  I d recommend against it  Why not just handle all admin stuff in an admin controller  If you do want two separate CI installations  make sure they are definitely distinct entities and that the two aren t conflicting with one another  This line    system folder       system    application folder       application admin    this line exists of course twice    And the place you said this exists   admin index php   or did you mean  admin application config   has me scratching my head  You have admin application admin and a system folder at the top level

User · Answer

If you installed new Codeigniter  please check if you added  htaccess file on root directory  If you didn t add it yet  please add it  You can put default content it the  htaccess file like below    lt IfModule mod rewrite c gt  RewriteEngine On RewriteBase     Removes access to the system folder by users   Additionally this will allow you to create a System php controller   previously this would not have been possible    system  can be replaced if you have renamed your system folder  RewriteCond   REQUEST URI   system   RewriteRule         index php   1  L    When your application folder isn t in the system folder  This snippet prevents user access to the application folder  Submitted by  Fabdrol  Rename  application  to your applications folder name  RewriteCond   REQUEST URI   application   RewriteRule         index php   1  L    Checks to see if the user is attempting to access a valid file   such as an image or css document  if this isn t true it sends the  request to index php RewriteCond   REQUEST FILENAME   -f RewriteCond   REQUEST FILENAME   -d RewriteRule        index php   1  L   lt  IfModule gt    lt IfModule  mod rewrite c gt    If we don t have mod rewrite installed  all 404 s   can be sent to index php  and everything works as normal    Submitted by  ElliotHaughin  ErrorDocument 404  index php  lt  IfModule gt

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