PHP获取阳历或农历的节日函数

//节日
function festival($today){
$temp=$f_lunar=$f_solar='';
$lunar_cls = new Lunar();
$nl_today  = date("Y-m-d",$lunar_cls->S2L($today));  //获取农历
$arr_lunar=array('01-01'=>'春节','01-15'=>'元宵节','05-05'=>'元宵节','07-07'=>'七夕情人节','08-15'=>'中秋节','09-09'=>'重阳节');
$arr_solar=array('01-01'=>'元旦','02-14'=>'情人节','03-08'=>'妇女节','03-12'=>'植树节','04-01'=>'愚人节','04-08'=>'复活节','05-01'=>'劳动节','05-04'=>'青年节','05-12'=>'护士节','05-31'=>'无烟日','06-01'=>'儿童节','07-01'=>'建党节','08-01'=>'建军节','09-10'=>'教师节','10-01'=>'国庆节','10-31'=>'万圣节','12-24'=>'平安夜','12-25'=>'圣诞节');
$md_lunar=substr_replace($nl_today,'',0,5);
$md_solar=substr_replace($today,'',0,5);
$f_lunar=$arr_lunar[$md_lunar];
$f_solar=$arr_solar[$md_solar];
if(!empty($f_lunar) && !empty($f_solar)){$temp='/';}
return trim($f_lunar.$temp.$f_solar);
}