<meta charset="UTF-8"> <?php $link=mysqli_connect("localhost:3306","root","root","supermarket"); if(!$link) { echo "链接失败的缘由是:" . mysqli_connect_error(); } mysqli_query($link,"set names utf8"); $sql="select * from goods"; $a=mysqli_query($link,$sql); while($res=mysqli_fetch_assoc($a)){ $arr[]=$res; }
//删除
<meta charset="UTF-8"> <?php $link=mysqli_connect("localhost:3306","root","root","supermarket"); if(!$link) { echo "链接失败的缘由是:" . mysqli_connect_error(); } mysqli_query($link,"set names utf8"); $id=isset($_GET['id'])?trim($_GET['id']):''; if(empty($id)) die("要删除的数据没有传过来"); $sql="delete from goods where goods_id in($id)"; $a=mysqli_query($link,$sql); if($a){ echo "删除成功"; header("location:a.php"); } else{ echo "删除失败"; header("location:a.php"); }
//添加
<?php $date=isset($_POST['date'])?trim($_POST['date']):''; $ge=isset($_POST['ge'])?trim($_POST['ge']):''; $shu=isset($_POST['shu'])?trim($_POST['shu']):''; if(empty($date)) die("日期不能为空"); if(empty($ge)) die("价格不能为空"); if(empty($shu)) die("数量不能为空"); $link=mysqli_connect("localhost:3306","root","root","supermarket"); if(!$link) { echo "链接失败的缘由是:" . mysqli_connect_error(); } mysqli_query($link,"set names utf8"); $sql="insert into goods(goods_id,goods_date,goods_price,goods_num) values(null,'".$date."','".$ge."','".$shu."')"; //根据需求改字段 $a=mysqli_query($link,$sql); if($a){ echo "添加成功"; header("location:xing.html"); }else{ echo "添加失败"; header("location:xing.html"); } ?>
//修改
<meta charset="UTF-8"> <?php $link=mysqli_connect("localhost:3306","root","root","yuekao"); if(!$link) echo "连接失败的缘由是:" . mysqli_connect_error(); mysqli_query($link,"set names utf8"); $xm=isset($_POST['xm'])?trim($_POST['xm']):''; $q=isset($_POST['q'])?trim($_POST['q']):''; $time=isset($_POST['time'])?trim($_POST['time']):''; $chang=isset($_POST['chang'])?trim($_POST['chang']):''; $shi=isset($_POST['shi'])?trim($_POST['shi']):''; $id=isset($_POST['id'])?trim($_POST['id']):'';//接值 if(empty($xm)) die("姓名不能为空"); if(empty($id)) die("id不能为空"); if(empty($time)) die("时间不能为空"); if(empty($chang)) die("场地不能为空"); if(empty($shi)) die("注意事项不能为空"); $time=time(); $sql="update bisai set name='$xm',time='$time',address='$chang',zhu='$shi' where id='$id'";//根据需求更改 $a=mysqli_query($link,$sql); if($a){ echo "修改为功"; header("location:zeng.php"); }else{ echo "修改失败"; header("location:zeng.php"); } ?>