getting things from a specific

[blufish]

Ok, heres my problem...

 

I want to randomly select a random line from a file, but the first and last lines, I do not want to select randomly, how to I achieve this? ???

 

Edit: to be more clear I want to select a random line from a file except for the first couple lines and the last couple lines...

[sasa]

try

<?php
$lines = file('filename');
$key = rand(2, count($lines) - 3);
echo $lines[$key];
?>