Urgent help needed regarding php arrays

i have problem with php ..

i have form index.html with

here is the code of acc.php

now here is thing if i put this in text area in index.html

Username: asdasd
Password: pass

Username: sdfsdfd
Password: sfsdfsd

Username: lasd
Password: eniasd2

Code (markup):

im getting only teh echo output as asdasd pass

its not showing everthing ..it should be showing like

asdasd pass
sdfsdfd sfsdfsd
lasd eniasd2

im not good with php at all ..so please help me out

 

What was the purpose of doing this?

$newuser=nl2br($list);
$newuser=explode("\n",$list);

No point in the first line since it's overriden by the second one (and even if you changed $list to $newuser in the second one, spliting by \n wouldn't work after having converted nl to brs).