php与版本5到版本7的定义有区别吗?

I migrated to godaddy for a perma-host. Now much of my code is not working. For years I have used the following code in my gaming site. but now I want to move it to a more permanent host. I've been using php v5 with no issues, never had a reason to change. However I did finally migrate to PDO. With that said, here is the .ini file I use:(keep in mind, it is a giagantic ini file, but the following are what is important that is NOT working..

SQL_TYPE=mysql
HOST=localhost
USER=incognito
PASS=topsecret
DATABASE=mycooldb

to pull it for defines:

$defines = parse_ini_file('defines.ini');
    foreach($defines as $field=>$data)
        define($field, $data);    

Now there is an error when I use godaddy (which i believe is up to v7 php). If I run

die('host = '.HOST) // gives HOST

On my local server

die('host = '.HOST) // gives localhost - as it should

Why is this happening? I supposed I could line by line the defines, but they have worked for years the way I have it.

Thanks for any input.

Since it appears I have 2 problems, I will answer what addresses my first issue for this topic and close it:

There was not a problem with the DEFINES, but instead, my .ini files that stored the information for the variables that create the DEFINES.

In this ini file, I originally had "#" for comments as was accepted at the time, (which was what I was used to see: https://en.wikipedia.org/wiki/INI_file#Format) However, not catching some of the "depreciation errors" I got over the years from PHP v5.3 - as I was stubborn changing - "#" was among those warnings. When PHP 7 finally came, the "#" no longer worked as comments, and thus my DEFINES variable ceased to work, as the script was stuck at the first commented line.

Conclusion: As far as my error, there is NO difference in the defines between PHP: v7 and v5, however the use of "#" as comments caused the error. Thank you @Magnus Eriksson and @Calimero for the tip to display errors to catch it.