(PHP 4, PHP 5)
ftell вЂ” Tells file pointer read/write position
Tells the file pointer read/write position.
Returns the position of the file pointer referenced by handle ; i.e., its offset into the file stream.
If an error occurs, returns FALSE.
Example#1 ftell() example
// opens a file and read some data
$fp = fopen("/etc/passwd", "r");
$data = fgets($fp, 12);
// where are we ?
echo ftell($fp); // 11