php根据日期判断星座的函数分享

　　function yige_constellation($month, $day) {

　　// 检查参数有效性

　　if ($month < 1 || $month > 12 || $day < 1 || $day > 31) return false;

　　// 星座名称以及开始日期

　　$constellations = array(

　　array( "20" => "宝瓶座"),

　　array( "19" => "双鱼座"),

　　array( "21" => "白羊座"),

　　array( "20" => "金牛座"),

　　array( "21" => "双子座"),

　　array( "22" => "巨蟹座"),

　　array( "23" => "狮子座"),

　　array( "23" => "处女座"),

　　array( "23" => "天秤座"),

　　array( "24" => "天蝎座"),

　　array( "22" => "射手座"),

　　array( "22" => "摩羯座")

　　);

　　list($constellation_start, $constellation_name) = each($constellations[(int)$month-1]);

　　if ($day < $constellation_start) list($constellation_start, $constellation_name) = each($constellations[($month -2 < 0) ? $month = 11: $month -= 2]);

　　return $constellation_name;

　　}

　　echo yige_constellation(4, 20);