ftell

Returns the current position of the file read/write pointer

Description

int ftell ( resource $handle )

Returns the position of the file pointer referenced by handle.

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 as an integer; i.e., its offset into the file stream.

If an error occurs, returns FALSE.

Note: Because PHP's integer type is signed and many platforms use 32bit integers, some filesystem functions may return unexpected results for files which are larger than 2GB.

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);

?>

See Also

  • fopen
  • popen
  • fseek
  • rewind