Fatal error installing ojs 3.2.0-3

good morning, i’m trying to install ojs 3.2.0-3, with php 7.2 and i get the following error( i don’t copy everything) at the end of the process. To someone I pass ? what can it be ? thank you very much for the help!

Fatal error: Uncaught Error: Call to undefined function json_encode() in /home/xxxx/xxxx/xxxxx/lib/pkp/classes/template/PKPTemplateManager.inc.php:751 Stack trace: #0

etc.

Hi @Juan_Pereyra,

See e.g.: php - Fatal error: Call to undefined function json_encode() ..? - Server Fault

Regards,
Alec Smecher
Public Knowledge Project Team