A PHP Error was encountered

Severity: Warning

Message: array_key_exists(): The first argument should be either a string or an integer

Filename: controllers/Anagrafiche.php

Line Number: 15

Backtrace:

File: D:\xampp\htdocs\mydonor_servizi\landing_generator\application\controllers\Anagrafiche.php
Line: 15
Function: array_key_exists

File: D:\xampp\htdocs\mydonor_servizi\landing_generator\index.php
Line: 292
Function: require_once