Help needed for CI v3

if it helps I would be willing to sponsor some development of the project to maintain it. Not a huge amount but some money. If anyone is interested please reach out.

i have error in php 7.4
please help

An uncaught Exception was encountered

Type: Error

Message: Call to undefined method CI_Form_validation::substr()

Filename: /system/libraries/Form_validation.php

Line Number: 1242

Backtrace:

File: /application/controllers/Welcome.php
Line: 84
Function: run

File: /index.php
Line: 315
Function: require_once

Hello I can help maintain Code Igniter 3. Let me know more about this.

Was the CI3 user guide removed from codeigniter.com? Curious as to the meeting of the minds that took place over that decision.

?

Was the CI3 user guide removed from codeigniter.com? Curious as to the meeting of the minds that took place over that decision.

?

Not it was not removed, maybe you have an old bookmark: https://www.codeigniter.com/userguide3/index.html
On the documentation page you have the links for CI4 and CI3 https://www.codeigniter.com/docs

CodeIgniter 4 tutorials (EN/FR) - https://includebeer.com
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