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Returns the current position of the file read/write pointer

Filesystem Functions

ftell

(PHP 4, PHP 5)

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.

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);

?>

See Also

fopen() - Opens file or URL
popen() - Opens process file pointer
fseek() - Seeks on a file pointer
rewind() - Rewind the position of a file pointer

Filesystem Functions