Php/docs/function.ftell
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ftell
(PHP 4, PHP 5, PHP 7)
ftell — Returns the current position of the file read/write pointer
Description
ftell
( resource $handle
) : int
Returns the position of the file pointer referenced by handle.
Parameters
handle- The file pointer must be valid, and must point to a file successfully opened by fopen() or popen(). ftell() gives undefined results for append-only streams (opened with "a" flag).
Return Values
Returns the position of the file pointer referenced by
handle as an integer; i.e., its offset into the file stream.
If an error occurs, returns FALSE.
Note:
Because PHP's integer type is signed and many platforms use 32bit integers, some filesystem functions may return unexpected results for files which are larger than 2GB.
Examples
Example #1 ftell() example
<?php// opens a file and read some data$fp = fopen("/etc/passwd", "r");$data = fgets($fp, 12);// where are we ?echo ftell($fp); // 11fclose($fp);?>
