function my_roman($x){
$num = intval($x);
if (!$num) {
return($x);
die;
}
if ($num >= 4000) {
return($x);
die;
}
$roman = array (
"0" => array(
"1" => "I", //1
"2" => "II",
"3" => "III",
"4" => "IV",
"5" => "V", //5
"6" => "VI",
"7" => "VII",
"8" => "VIII",
"9" => "IX",
"0" => ""
),
"1" => array(
"1" => "X", //10
"2" => "XX",
"3" => "XXX",
"4" => "XL",
"5" => "L", //50
"6" => "LX",
"7" => "LXX",
"8" => "LXXX",
"9" => "XC",
"0" => ""
),
"2" => array(
"1" => "C", //100
"2" => "CC",
"3" => "CCC",
"4" => "CD",
"5" => "D", //500
"6" => "DC",
"7" => "DCC",
"8" => "DCCC",
"9" => "CM",
"0" => ""
),
"3" => array(
"1" => "M", //1000
"2" => "MM",
"3" => "MMM"
)
);
$numlen = strlen( $num );
$x = "";
for ($nums=0; $nums < $numlen; $nums++){
$pos = $nums+1;
$num_interval = @substr($num, -$pos, 1);
$x = @strtr($num_interval, $roman[$nums]).$x;
}
return($x);
}
Простой