not to get off topic but your saying 
($t[0] == $s[0] && $t[0] == $e[0]) ? $r[0] = 1 : $r[0] = 0;

[download]
isn't the same as 
if ($t[0] == $s[0] && $t[0] == $e[0]){
   $r[0] = 1;
}
else{
   $r[0] = 0;
}

[download]
right?

In reply to Re^2: checking ip ranges by arcnon
in thread checking ip ranges by arcnon

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