php根據日期判斷星座的函數

 下面提供一個用PHP來判斷指定一日期屬於哪個星座的函數,需要的朋友可以參考下

 代碼如下: function yige_constellation($month, $day) {  // 檢查參數有效性   if ($month < 1 || $month > 12 || $day < 1 || $day > 31) return false;    // 星座名稱以及開始日期  $constellations = array(   array( "20" => "寶瓶座"),   array( "19" => "雙魚座"),   array( "21" => "白羊座"),   array( "20" => "金牛座"),   array( "21" => "雙子座"),   array( "22" => "巨蟹座"),   array( "23" => "獅子座"),   array( "23" => "處女座"),   array( "23" => "天秤座"),   array( "24" => "天蠍座"),   array( "22" => "射手座"),   array( "22" => "摩羯座")  );    list($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; }     調用示例：    代碼如下: echo yige_constellation(4, 20);