Forum und email

ftell

(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");
$data fgets($fp12);

// where are we ?
echo ftell($fp); // 11

fclose($fp);

?>