PHP Functions Essential Reference

ftell

int ftell(resource file_handle) 

Retrieves the file pointer position.

Returns:

File pointer position; FALSE on error

Description:

Returns the current position of the file pointer in the file. The position is returned as a number of bytes.

Warning:

3.0.5: Unverified bug on SGI IRIX reporting an invalid file pointer after read operation.

Example:

Seek/read in a file

$fh = fopen("test.txt", "r"); echo ("Current position: ". ftell($fh) ." bytes.<br />"); echo ("Character at this position: ". fgetc($fh) ."<br />"); // advance a few bytes fseek($fh, 8); echo ("New position: ". ftell($fh) ." bytes.<br />"); echo ("Character at this position: ". fgetc($fh)); fclose($fh);