XF 2.1 Blank page after switching to php 7.3

[~kevin~]

Had the hosting provider install php 7. I went into cpanel, switched the site to 7.3, and the site went to a blank page. Even the source code was blank. Every url was blank.

Switched the php version back to 5.6, and it came live again.

xenforo version : v2.1.9

Suggestions?

 

[Dnyan]

i would suggest, if you are using caching setting, try to remove them from config and inspect for the issue.
ensure you have updated to latest PHP version, one of the 7.3 minor upgrade was buggy.

 

[Arnox]

I think there's a setting to turn on PHP error displaying, but it's been a while, and I don't know CPanel. Only Plesk.

 

[djbaxter]

Make sure that all the options and modules for PHP 7.3 are the same as the options and modules for PHP 5.6.

In particular:

GD (with JPEG support)
PCRE
cURL
SPL
SimpleXML
DOM
JSON
iconv
ctype
mbstring
ZIP
iMagick