how to check version of codeigniter framework?

Question

I recently setup a old Codeigniter framework on my xampp.But i don't know the version of this framework. I use the code

<?php echo CI_VERSION; ?>

but its give me error

Notice: Use of undefined constant CI_VERSION - assumed 'CI_VERSION' in /opt/lampp/htdocs/projectname/views/v_header.php on line 57
CI_VERSION

Please guide me, I am new in Codeigniter.

'' should echo out the correct version of CI. if it doesn't something might be wrong with your CI installation - specially if you comment several times that you have no system folder! I would try to re-install CI from scratch. — Vickel, Dec 23 '16 at 17:16
Does this answer your question? [Which version of CodeIgniter am I currently using?](https://stackoverflow.com/questions/2196799/which-version-of-codeigniter-am-i-currently-using) — Adam P., Nov 14 '20 at 14:13

score 25 · Answer 1 · answered Dec 23 '16 at 06:54

25

See in system/core/CodeIgniter.php and there is a constant like this..

define('CI_VERSION', '3.0.6');

answered Dec 23 '16 at 06:54

Hikmat Sijapati

6,557
1
7
18

I have no any folder with name of system – bansal kapil Dec 23 '16 at 07:06
see in root directory. – Hikmat Sijapati Dec 23 '16 at 07:14

score 7 · Answer 2 · answered May 09 '17 at 18:23

7

You can check it two ways. one is to

<?php echo CI_VERSION; ?>

Another way is go to your system/core/CodeIgniter.php path and then check define('CI_VERSION', '2.1.4');

answered May 09 '17 at 18:23

RASEL RANA

1,966
1
12
16

score 6 · Answer 3 · answered Feb 09 '19 at 02:18

6

In the root folder:

cat system/core/CodeIgniter.php | grep CI_VERSION

answered Feb 09 '19 at 02:18

paulc

325
3
9

score 4 · Answer 4 · answered Dec 23 '16 at 06:53

4

check the file system/core/CodeIgniter.php

answered Dec 23 '16 at 06:53

Linu S

81
10

I have no any folder with name of system – bansal kapil Dec 23 '16 at 07:05
There are 3 folders in your root folder. They are 'application','system' and 'user guides'. – Linu S Dec 23 '16 at 07:33

score 3 · Answer 5 · answered Dec 23 '16 at 07:21

Method 1:

Please access the file

System >> Core >> Codeigniter.php

 /**
  * CodeIgniter Version
  *
  * @var    string
  *
  */
  define('CI_VERSION', '3.0.0');

Method 2: In index.php or any other view file write the following code of php as follows:

 <?php
   echo CI_VERSION;
 ?>

CI_VERSION is build in constant in codeigniter, which contains value of version.

Thank you!

score 3 · Answer 6 · answered Nov 04 '17 at 17:07

3

Try This:<?php echo CI_VERSION; ?> // echoes something like 3.1.6

answered Nov 04 '17 at 17:07

Rafiqul Islam

729
9
12

score 2 · Answer 7 · answered Dec 23 '16 at 07:58

Which means you are not properly configure your codeigniter project / system folder. System folder is not necessary to be placed in project root. you can place anywhere and configure the correct system path[something like $system_path = '../system';] in the index.php(project root) properly. It should work...

score 0 · Answer 8 · answered Jul 26 '20 at 23:25

0

For CodeIgniter 4, the CI_VERSION is defined in system\CodeIgniter.php

answered Jul 26 '20 at 23:25

user1283182

121
3

how to check version of codeigniter framework?

8 Answers8