ftell
(PHP 3, PHP 4, PHP 5)
ftell -- Tells file pointer read/write position
Description
int
ftell ( resource handle )
Tells the file pointer read/write position.
Parameters
handle
The file pointer must be valid, and must point to a file successfully
opened by fopen() or popen().
ftell() gives undefined results for append-only streams
(opened with "a" flag).
Return Values
Returns the position of the file pointer referenced by
handle; i.e., its offset into the file stream.
If an error occurs, returns FALSE.
Examples
Example 1. ftell() example
<?php
// opens a file and read some data
$fp = fopen("/etc/passwd", "r");
$data = fgets($fp, 12);
// where are we ?
echo ftell($fp); // 11
fclose($fp);
?>
|
|