ftell
PHP function
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(PHP 4, PHP 5, PHP 7, PHP 8)
Returns the current position of the file read/write pointer
Description
ftell(resource $stream): int|false
Returns the position of the file pointer referenced by stream.
Parameters
streamThe file pointer must be valid, and must point to a file successfully opened by
fopen()orpopen().ftell()gives undefined results for append-only streams (opened with "a" flag).
Return Values
Returns the position of the file pointer referenced by stream as an integer; i.e., its offset into the file stream.
If an error occurs, returns false.
32bit
Examples
ftell() example
php
<?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);
?>