(PHP >= 5.3.0, PECL fileinfo >= 0.1.0)
finfo_set_flags — Set libmagic configuration options
过程化风格
面向对象风格
This function sets various Fileinfo options. Options can be set also directly in finfo_open() or other Fileinfo functions.
Fileinfo resource returned by finfo_open().
One or disjunction of more Fileinfo constants.
成功时返回 TRUE， 或者在失败时返回 FALSE.