please help codeigniter

[Sbukeyz]

A PHP Error was encountered
Severity: Notice

Message: Undefined offset: 0

Filename: controllers/Admin.php

Line Number: 30

Backtrace:

File: C:\xampp\htdocs\projectM\application\controllers\Admin.php
Line: 30
Function: _error_handler

File: C:\xampp\htdocs\projectM\index.php
Line: 315
Function: require_once

A PHP Error was encountered
Severity: Notice

Message: Trying to access array offset on value of type null

Filename: controllers/Admin.php

Line Number: 30

Backtrace:

File: C:\xampp\htdocs\projectM\application\controllers\Admin.php
Line: 30
Function: _error_handler

File: C:\xampp\htdocs\projectM\index.php
Line: 315
Function: require_once

[mohammadhzp]

You must ask this question on the forum.

[euginepj]

@Sbukeyz,
You need to use isset to check if item is present in array, before retrieve data.

if(isset($array($item))) { 
     $data = $array[$item]; 
} 

[tal7aouy]

@Sbukeyz
To fix the error, you will need to look at the code on line 30 and figure out what is causing the issue. You may need to check if the array is defined and if the element you're trying to access exists. Additionally, you may need to make sure that any variables you're using have been initialized before you try to access them.