北京天津汽车尾号限行PHP源代码
//今日限行
function GetXianXing($day=''){
$day=$day==""?date("Y-m-d"):$day;
$iday=strtotime($day);
$n=date("w",$iday);
$sts=strtotime("20150901");
$ets=strtotime("20150903");
if($iday>=$sts&&$iday<=$ets){
if(date("d",$iday)%2==0){
return "单号";
}else{
return "双号";
}
}
if($n==0||$n==6)return "不限";
$n--;
$arrXian=array('1,6','2,7','3,8','4,9','5,0');
$sdate=explode ('-','2014-01-01');
$edate=explode ('-',$day);
$mo=($edate[0]-$sdate[0])*12+$edate[1]-$sdate[1];
if(in_array(date("n",$iday),array(1,4,7,10))){
$ww=0;
for($i=1;$i<=date("j",$iday);$i++){
if(date("w",strtotime(date("Y-m-$i",$iday)))==0)$ww++;
}
//echo "mo=$mo ww=".$ww."\n";
if($ww<2)$mo--;
}
//echo "n=".$n."\n";
$n=($n+floor($mo/3)*4)%5;
//echo $n."\n";
return $arrXian[$n];
}