Server running RHEL 7 and PHP 5.4.16. When I try to open /phpMyAdmin in my browser, I\'m given the error:
Fatal error: Call to undefined function __() in /us
If phpmyadmin was working fine and then suddenly stops working for no reason with a bizarre and useless error message, you might try deleting your php sessions.
rm -rf /var/lib/php/sessions/*
The exact location may very depending on OS and version, and this will delete all active sessions, not just yours, but it can fix some "suddenly stopped working" issues when you haven't changed anything and it was working fine before.