https://www.godaddy.com/help/what-filename-does-my-php-initialization-file-need-to-use-8913
NOTE: Custom php.ini/php5.ini/.user.ini files are NOT a one size fits all kind of thing. So it would probably be best to contact your host and ask them to copy/create a custom php.ini file for you to get started. You can then edit it and change things after a custom php.ini file has been created for you. If you want to try to figure this out on your own then continue reading…
Create a php file named My-phpinfo.php and add this code in it below:
<?php phpinfo(); ?>
Then upload your My-phpinfo.php file to your website root folder and view it in your Browser: example.com/My-phpinfo.php.
The PHP phpinfo() function will show you your server’s PHP Configuration information. What you are looking for are these 2 paths below to determine which GD hosting type you have and the path to the php.ini/php5.ini file that is being loaded/seen by your server.
Configuration File (php.ini) Path: shows the server’s default folder where the the server’s php.ini file is stored and loaded from if you have not created a custom php.ini file for your site.
Loaded Configuration File: shows the folder/file path for the php.ini file that the server is using/loading.
To get started copy your server’s default php.ini/php5.ini file to your website root folder and then edit it and change the memory_limit directive setting to 128M.