Still trying to make it "multiple-files-friendly"
Still trying to make it "multiple-files-friendly"

If you pass the option 'multiple' to upload many files, the default button label becomes plural.
Also, it fixes the displayed value after submit: the name of the file if only one or a count of files if many
Holt59/cakephp3-bootstrap3-helpers,raul338/cakephp3-bootstrap3-helpers,ypnos-web/cakephp3-bootstrap-helpers,Holt59/cakephp3-bootstrap-helpers