I believe documentation needs to be updated to reflect the current compatibility requirements for the upgrade from 7.1 to 7.2
https://suitecrm.com/wiki/index.php/Upgrade
Compatibility matrix for upgrade
PHP version 5.2.1-5.2.6, 5.2.8-5.2.15, 5.2.17, 5.3.0 - 5.3.6 Databases MySQL - 5.0x, 5.1 MSSQL - 2005, 2008 Operating systems Windows: Sugar runs on any OS that runs PHP Linux: Sugar runs on any OS that runs PHP Mac: Sugar runs on any OS that runs PHP
PHP Version 5.2 did not work and I received an install error Install Error - unexpected T_FUNCTION.
Once I updated to 5.3 fit came up without a problem.
Possibly add a php version check to confirm users server is able to support 7.2 during the install / upgrade.
Michael