A PHP Error was encountered

Severity: 8192

Message: json_decode(): Passing null to parameter #1 ($json) of type string is deprecated

Filename: controllers/Favoris.php

Line Number: 17

Backtrace:

File: /home/manzilkeys/public_html/application/controllers/Favoris.php
Line: 17
Function: json_decode

File: /home/manzilkeys/public_html/index.php
Line: 316
Function: require_once