(PHP 5 >= 5.1.2, PHP 7, PHP 8)
SplFileInfo::getSize — Gets file size
Returns the filesize in bytes for the file referenced.
此函數(shù)沒(méi)有參數(shù)。
The filesize in bytes on success, or false on failure.
A RuntimeException will be thrown if the file does not exist or an error occurs.