Is there any serious accounting software in PHP?

Question

PHP

Is there any serious software on PHP+Apache+DBMS? I mean software in the field of trade, logistics, small and medium-sized businesses. If not, why do you think?

Answer 1

exist

Answer 2

of course exists.
auctions, domain registrars, CRM, task management, online stores - isn't it?

Answer 3

1C-Bitrix: Site Management - Web Cluster - the first thing that comes to mind ... Most often, PHP is used for simple template logic and other simple tasks, even in large projects where the basis is "spinning" for example in Python, Perl or even Java.