I'm using PHP 7.3 on a CWP Pro installation.
Most of the domains are fine with 7.3 but on one I'm using PHP 5.6 installed with PHP selector V2.
AddHandler application/x-httpd-php56 .php
The CMS I'm using has a WebsocketChatServer which is turned on with a
shell_exec PHP command.
The problem is that the chat server runs with PHP 7.3.
The shell_exec command looks something like
/path/Server.php start 14000 > /dev/null 2>/dev/null & echo $! > /path/process_id.txt.
I tried changing
/opt/alt/php56 but it doesn't seem to work.