Returns the size of the file in bytes, or FALSE in case of an error.
Σημείωση: 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)).
Σημείωση: Τα αποτελέσματα αυτής της συνάρτησης έχουν γίνει cache. Δείτε την clearstatcache() για περισσότερες πληροφορίες.
Υπόδειξη: As of PHP 5.0.0 this function can also be used with some URL wrappers. Refer to Παράρτημα J for a listing of which wrappers support stat() family of functionality.
See also file_exists()