<?php
// Quick example to test the return value in order to tell a 0 byte file from a failed call to filesize()
$size = filesize("some.file");
if ($size === FALSE) {
echo "filesize not available";
} else {
echo "some.file is $size bytes long";
}
// A shorter version, slightly different
if ( ($size = filesize("some.file")) !== FALSE)
echo "some.file is $size bytes long";
?>