I am creating a web application using codeigniter 3. I have created the database and views and models for user and for admin also now i stucked at some point where i need to give permission to admin so that he can delete a user information or can update it. How to do this.

I have a Codeigniter 3 project. There was no problem when I was running the site locally, but when I uploaded it to the ngxi server, I got this error:
“The upload destination folder does not appear to be writable.”
My codes are as follows:

i’ve come accross a problem where I can’t seem to find a solution regarding this issue where I want to write a php controller on server. i want to change the content of previous file and create a new file.

I’ve form to insert data use insert_batch CI 3, my plan is use insert_batch to insert more data in one time and javascript to create dynamically the form. Below the code I’ve to try it.

I’m coding some features in a Codeigniter 3.1.9 application and I want to know which errors occur first, which occur later and so on (the time sequence of error occurrence) so I can understand how the system is working inside (it’s a legacy system) . The browser displays the errors fine, but I don’t know if I should read the errors from top to bottom (the first errors on top and the last ones on the bottom) or if I should read them backwards. Can someone help me please?

I have this code to check AI content in a text using copyleaks AI API. This is the documentation https://docs.copyleaks.com/docs/copyleaks-documentation/potbjbwncweum-submit-natural-language

Severity: Warning
Message: preg_match(): Compilation failed: regular expression is too large at offset 35426
Filename: database/DB_query_builder.php
Line Number: 2415
if (($op = $this->_get_operator($conditions[$ci])) === FALSE || ! preg_match('/^((?)(.*)('.preg_quote($op, '/').')s*(.*(?<!)))?()?)$/i', $conditions[$ci], $matches)) { continue; }