(PHP 5 >= 5.1.0, PHP 7)
SplFileObject::ftell — Return current file position
Returns the position of the file pointer which represents the current offset in the file stream.
Esta função não possui parâmetros.
Returns the position of the file pointer as an integer, or FALSE on error.
Exemplo #1 SplFileObject::ftell() example
<?php
$file = new SplFileObject("/etc/passwd");
// Read first line
$data = $file->fgets();
// Where are we?
echo $file->ftell();
?>