removing a blank line in txt file with php

[Vincent26381]

Hi,

I made this super simple (learning) php script to subscribe to an e-mail list, send the mails with a webbased textfield and that works all ok. The problem is unsubscribing.

In the mail is a link like this: http://wwww.somhost.com/[email protected]

I made a form where the initial value is that email, when they press the submit button it posts it to this script:
(Ihave 1 e-mail per line)

$T1 = $_POST['T1']; 

$splitmails = file("themails.dat");
$tn = 0;
for ($i = 0; $i < count($splitmails); $i++) { 

$deleteadres = $splitmails[$tn];
$tn++;

$deleteadres = str_replace("$T1", "", $deleteadres);

$fp .= $deleteadres;
}

$a = fopen("themails.dat", "w"); 
fputs($a, "$fp");
fclose($a);
?> 

This leaves a blank line where the unsubscribed e-mail was. Is there any way to remove that blank line too?

Thanks