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ftell

(PHP 4, PHP 5)

ftellReturns the current position of the file read/write pointer

설명

int ftell ( resource $handle )

Returns the position of the file pointer referenced by handle .

인수

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).

반환값

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.

예제

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);

?>

참고


파일시스템 함수 목록
PHP Manual