剥去冒号的字符串

I have a textarea where a user copies and pastes the entire message:

Time(UTC): 2010-02-27T21:58:20.74Z

Filesize  : 9549920 bytes

IP Address: 192.168.1.100

IP Port: 59807

Using PHP, how can I automate this and parse this down to 4 separate variables, like so:

<?php
$time = 2010-02-27T21:58:20.74Z;
$filesize = 9549920;
$ip = 192.168.1.100;
$port = 59807;

I can tell that each line has a colon, so I'm thinking this might have something to do with it. I'm not sure if I would need to use substr or something. But I'm not quite sure where to start with this?

Any help would be great! Thanks.

one way

$textarea=<<<EOF
Time(UTC): 2010-02-27T21:58:20.74Z

Filesize  : 9549920 bytes

IP Address: 192.168.1.100

IP Port: 59807
EOF;

$s = explode("

",$textarea);
foreach ($s as $k=>$v){
  list($a,$b) = array_map(trim,explode(": ",$v));
  # or use explode(":",$v,2) as jason suggested.
  $array[$a]=$b;
}
print_r($array);

Is it guaranteed that each will be on its own line and in that order? Then you might be able to explode the entire string on and then explode each line on :. That's a quick and dirty approach. Beyond that you should go through line by line and look at the beginning of the line whether the text before the first colon matches a desired variable and, if so, parse it according to predetermined parsing rules (e.g. drop 'bytes' from the filesize value).