详解php实现商品添加功能并写入数据库

alert('价格只能为数字！');history.back();";
   exit;
 }
if(is_numeric($_POST['shuliang'])==false)
 {
   echo "";
   exit;
 }
$mingcheng=$_POST['mingcheng'];
$nian=$_POST['nian'];
$yue=$_POST['yue'];
$ri=$_POST['ri'];
$shichangjia=$_POST['shichangjia'];
$huiyuanjia=$_POST['huiyuanjia'];
$typeid=$_POST['typeid'];
$dengji=$_POST['dengji'];
$xinghao=$_POST['xinghao'];
$pinpai=$_POST['pinpai'];
$tuijian=$_POST['tuijian'];
$shuliang=$_POST['shuliang'];
$upfile=$_POST['upfile'];

if(ceil(($huiyuanjia/$shichangjia)*100)<=80)
 {
 
    $tejia=1;
 }
 else
 {
    $tejia=0;
 }


function getname($exname){
   $dir = "upimages/";
   $i=1;
   if(!is_dir($dir)){
      mkdir($dir,0777);
   }
   
   while(true){
       if(!is_file($dir.$i.".".$exname)){
	       $name=$i.".".$exname;
	       break;
	   }
	   $i++;
	 }

   return $dir.$name;
}

$exname=strtolower(substr($_FILES['upfile']['name'],(strrpos($_FILES['upfile']['name'],'.')+1)));
$uploadfile = getname($exname);

move_uploaded_file($_FILES['upfile']['tmp_name'], $uploadfile);
if(trim($_FILES['upfile']['name']!=""))
 { 
  $uploadfile="admin/".$uploadfile;
}
else
 {
  $uploadfile="";
 }

$jianjie=$_POST['jianjie'];
$addtime=$nian."-".$yue."-".$ri;
mysqli_query($conn,"insert into tb_shangpin(mingcheng,jianjie,addtime,dengji,xinghao,tupian,typeid,shichangjia,huiyuanjia,pinpai,tuijian,shuliang,cishu)values('$mingcheng','$jianjie','$addtime','$dengji','$xinghao','$uploadfile','$typeid','$shichangjia','$huiyuanjia','$pinpai','$tuijian','$shuliang','0')");
echo "";
?>