代码片段！！！

主要是对字符和数组的判断！就是为了及一个笔记！

 

<?PHP
function show_arrow($a,$b)
{
    $b_arr=str_split($b);
    if(in_array('-',$b_arr))
    {
        $val=explode('-',$b);
        if($a<$val[0])
            return "↓";
        elseif($val[1]<$a)
            return "↑";
    }
    if(in_array('>',$b_arr))
    {
        $val=explode('>',$b);
        if($val[1]>$a)
            return "↓";
    }
    if(in_array('<',$b_arr))
    {
        $val=explode('<',$b);
        if($val[1]<$a)
            return "↑";
    }
}
//function 人数的方法

function twoArraround($array){
    $arr_Num=count($array);
    for($i=0;$i<$arr_Num;$i++){
        foreach($array[$i] as $key => $value){
            $new_Arr[$key."_".$i]=$value;
        }
    }
    return $new_Arr;
}

function sata_Arr($database_name,$condition,$sex,$rate,$db_con){//数据库字段、条件(XX and XX)、性别(男、女)、比率(Y\N)

    $query="SELECT ".strtolower(substr($database_name,0,1)).".*,p.Patiant_Sex,p.Patiant_Age FROM ".$database_name." ".strtolower(substr($database_name,0,1)).",Patiant p WHERE ".strtolower(substr($database_name,0,1)).".Patiant_ID=p.Patiant_ID";
    if($condition!=""){
        $query_str=" and ".$condition;
        $query=$query.$query_str;
    }
    //echo $query;

    $result=$db_con->db_query($query);
    $data=$db_con->loadObjectList($result);
    $CON_Arr=array_count_values(twoArraround($data));
    //echo "

";

    //print_r($CON_Arr);

    if($rate=='Y'){
        $num_All = (int) ($CON_Arr["男"]+$CON_Arr["女"]);
        $num_Rate=(float) (($CON_Arr[$sex]/$num_All)*100);
        return $num_Rate;
    }
    else{
        if($sex!="男" && $sex!="女"){
            $num_All = (int) ($CON_Arr["男"]+$CON_Arr["女"]);
        }
        else{
            $num_All = (int) $CON_Arr[$sex];
        }
        return $num_All;
    }
}
?>