Writing to specific line

Does anyone know if its possible to write to a specific line, perhaps using fwrite() or something?


<?php
session_start();
$id = "2";


So I can get PHP to write in $id from $POST or something.

line in a file?
line (record) in a database table?

Need more info as to what you are seeking to accomplish.

Noonga, why are you starting another thread? You've asked this question already in this thread (http://www.codingforums.com/showthread.php?t=252267) which has received an answer pointing you to the correct reason why what you have tried has not worked.