Loader for ionCube Secured Files Formula was removed
Last version was
php71-ioncubeloader requires the following formulae to be installed:
autoconf 2.69 Automatic configure script builder

Recent formula history

Mike McQuaid Deprecate tap.
Sean Molenaar php-ioncubeloader add threadsafe extension
Luke Bussey php-ioncubeloader 10.0.3
Jake Booher php71-ioncubeloader: 10.0.0 (new formula)

Formula code at GitHub