filesize Gets file size intfilesize stringfilename Returns the size of the file in bytes, or &false; in case of an error. Because PHP's integer type is signed and many platforms use 32bit integers, filesize may return unexpected results for files which are larger than 2GB. For files between 2GB and 4GB in size this can usually be overcome by using sprintf("%u", filesize($file)). ¬e.clearstatcache; &tip.fopen-wrapper.stat; ]]> See also file_exists