Finfo class not found in PHP 7.0.1 -

i'm having @ php 7 , how plays current projects. 1 issue i've come across finfo (fileinfo) class cannot found.

new finfo(fileinfo_mime); // class 'finfo' not found 

as far aware finfo should compiled automatically php unless compiled flag --disable-fileinfo. phpinfo makes no reference fileinfo or compile flag.

has else had issue , found solution?

as documentation say:

windows users must include bundled php_fileinfo.dll dll file in php.ini enable extension.

so, enable in php.ini with

extension = php_fileinfo.dll