Meanwhile there's a random number generator built into PHP, here are my results from using it:
1000000 trials: 166870-166405-166726-166413-166530-167056
16.687%-16.6405%-16.6726%-16.6413%-16.653%-16.7056%
Here's the code if you guys want to try it on your own

<?php
for ( $counter = 0; $counter < 1000000; $counter++) {
$i = mt_rand(1,6);
if ( $i == 1) {
$one++;
}
if ( $i == 2) {
$two++;
}
if ( $i == 3) {
$three++;
}
if ( $i == 4) {
$four++;
}
if ( $i == 5) {
$five++;
}
if ( $i == 6) {
$six++;
}
}
echo "$counter trials: $one-$two-$three-$four-$five-$six";
$one = $one / 10000;
$two = $two / 10000;
$three = $three / 10000;
$four = $four / 10000;
$five = $five / 10000;
$six = $six / 10000;
echo "<br /> (or $one%-$two%-$three%-$four%-$five%-$six&)";
?>