php商品分页，修改，删除等

深碍√TFBOYSˉ_ 2022-05-29 12:47 218阅读 0赞

**php商品分页，修改，删除等**

继上次 [php添加商品][php] 文章之后，继续

![20180324103134364][]

![20180324103226799][]

add.php

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    <html xmlns="http://www.w3.org/1999/xhtml">
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=gbk" />
    <title>无标题文档</title><link rel="stylesheet" type="text/css" href="../style/common.css"/>
    <title>无标题文档</title>
    <script type="text/javascript">
    function check()
    {	
    	var proame=document.getElementById("proname");
    	if(proame.value=='')
    	{
    		alert("商品名称不能为空");//获得焦点
    		proame.focus();
    		return  false;
    		}
    	var  proguige=document.getElementById("proguige");
    	if(proguige.value=='')
    	{
    		alert("商品规格不能为空");//获得焦点
    		proguige.focus();
    		return  false;
    		}
    	//验证价格
    	var  proprice=document.getElementById('proprice');
    	if(proprice.value=='' ||isNaN(proprice.value))
    	{
    		alert("价格必须是一个数字");//获得焦点
    		proprice.select();
    		return  false;
    		}
    	//验证库存量
    	 var  proamount=document.getElementById("proamount");
    	 if(proamount.value==''||isNaN(proamount.value)||proamount.value.indexof('.')!=-1){
    
    			alert('库存量必须是一个整数');
    			proamount.select();
    			return false;
    		 }
    }
    </script>
    </head>
    <body>
    <?php 
    if(isset($_POST['button'])){
        $proname=$_POST['proname'];
        $proguige=$_POST['proguige'];
        $proprice=$_POST['proprice'];
        $proamount=$_POST['proamount'];
        $proimages=$_POST['proimages'];
        $proweb=$_POST['proweb'];
        //连接数据库
        mysql_connect('localhost','root','root')or die(mysql_error());
        mysql_select_db('phpmysql');
        mysql_query('set names gbk');
        $sql="insert into products values(null,'$proname','$proguige','$proprice','$proamount','$proimages','$proweb')";
         if(mysql_query($sql)){
            header('location:admin.php');//跳转到admin.php页面
         }
         else{
             echo '插入失败';
         }
    }
    ?>
    <form action="" name="form1" method="post" οnsubmit="return check()">
    <table width="500" border="1">
      <tr>
        <th colspan="2">添加商品</th>
      </tr>
      <tr>
        <td>商品名称</td>
        <td><input name="proname"  id="proname" type="text" /></td>
      </tr>
      <tr>
        <td>商品规格</td>
        <td><input name="proguige" id="proguige" type="text" /></td>
      </tr>
      <tr>
        <td>价格</td>
        <td><input name="proprice" id="proprice" type="text" /></td>
      </tr>
      <tr>
        <td>库存量</td>
        <td><input name="proamount" id="proamount"  type="text" /></td>
      </tr>
      <tr>
        <td>图片地址</td>
        <td><input name="proimages" id="proimages" type="text" /></td>
      </tr>
      <tr>
        <td>网址</td>
        <td><input name="proweb" id="proweb"  type="text" />
      </td>
      </tr>
      <tr>
        <td colspan="2" align="center"><input type="submit" name="button" id="button" value="提交" />
        <input type="submit" name="button2" id="button2" value="返回" οnclick="location.href='admin.php'"/></td>
      </tr>
    </table>
    </form>
    
    </body>
    </html>

修改页面modify.php

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    <html xmlns="http://www.w3.org/1999/xhtml">
    <head>
    <link rel="stylesheet" type="text/css" href="../style/common.css"/>
    <meta http-equiv="Content-Type" content="text/html; charset=gbk" />
    <title>修改商品页面</title>
    
    </head>
    <body>
    <?php 
    $id=$_GET['id'];//获取需要修改商品的编号
    //连接数据库
        mysql_connect('localhost','root','root')or die(mysql_error());
        mysql_select_db('phpmysql');
        mysql_query('set names gbk');
        $sql="select * from products where proid=$id";
        $rs=mysql_query($sql);
        $rows=mysql_fetch_assoc($rs);
    	//修改业务逻辑
    if(isset($_POST['button'])){
        //获取提交的数据
        $proname=$_POST['proname'];
        $proguige=$_POST['proguige'];
        $proprice=$_POST['proprice'];
        $proamount=$_POST['proamount'];
        $proimages=$_POST['proimages'];
        $proweb=$_POST['proweb'];
        //拼接sql语句
        $sql="update products set proname='$proname' ,
        proguige='$proguige',proprice='$proprice',proamount='$proamount',proimages='$proimages',proweb='$proweb' where proid=$id";
       if(mysql_query($sql))
       {
           header('location:admin.php');
       }else{
           echo '修改失败';
           exit();
       }
    }
    ?>
    <form action="" name="form1" method="post" >
    <table width="500" border="1">
      <tr>
        <th colspan="2">修改商品</th>
      </tr>
      <tr>
        <td>商品名称</td>
        <td><input name="proname"  id="proname" type="text" value="<?php echo $rows['proname']?>" /></td>
      </tr>
      <tr>
        <td>商品规格</td>
        <td><input name="proguige" id="proguige" type="text" value="<?php echo $rows['proguige']?>" /></td>
      </tr>
      <tr>
        <td>价格</td>
        <td><input name="proprice" id="proprice" type="text" value="<?php echo $rows['proprice']?>"/></td>
      </tr>
      <tr>
        <td>库存量</td>
        <td><input name="proamount" id="proamount"  type="text" value="<?php echo $rows['proamount']?>" /></td>
      </tr>
      <tr>
        <td>图片地址</td>
        <td><input name="proimages" id="proimages" type="text" value="<?php echo $rows['proimages']?>" /></td>
      </tr>
      <tr>
        <td>网址</td>
        <td><input name="proweb" id="proweb"  type="text" value="<?php echo $rows['proweb']?>" />
      </td>
      </tr>
      <tr>
        <td colspan="2" align="center"><input type="submit" name="button" id="button" value="修改" />
        <input type="submit" name="button2" id="button2" value="返回" οnclick="location.href='admin1/admin.php'"/></td>
      </tr>
    </table>
    </form>
    
    </body>
    </html>

![20180324103405260][]

删除del.php

下面来写一个分页

![20180324103603612][]

fenye.php

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    <html xmlns="http://www.w3.org/1999/xhtml">
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=gbk" />
    <title>无标题文档</title><link rel="stylesheet" type="text/css" href="style/common.css"/>
    </head>
    
    <body>
    <?php 
    //1.连接数据库
    $link=@mysql_connect('localhost','root','root') or die('数据库连接失败');
    //2-1选择数据库库 ：方法一
    //mysql_query('use data') or die('数据库连接失败');
    // 2-2 
    mysql_select_db('phpmysql') or die('数据库选择失败');
    //设置客户端编码
    mysql_query('set names gbk');
    //获取数据
    $s=mysql_query('select count(*) from products  ');
    $rows=mysql_fetch_row($s);//将资源匹配成索引数组
    $recordcount=$rows[0];//总记录数
    //定义页面大小
    $pagesize=2;
    //求总页数
    $pagecount=ceil($recordcount/$pagesize);
    //点击页码，获得当前页面
    $pageno=isset($_GET['pageno'])?$_GET['pageno']:1;//get请求是否有值，有值就用自身
    if($pageno<1){
        $pageno=1;
    }
    if($pageno>$pagecount){
        $pageno=$pagecount;
    }
    
    //获取当前页的起始位置
    $startno=($pageno-1)*$pagesize;
    //获取当前页的内容
    $sql="select * from products limit $startno,$pagesize";
    
    $rs=mysql_query($sql);
    
    ?>
    <table width="500" border="1">
    	<tr>
        	<th>编号</th>
            <th>商品名称</th>
            <th>规格</th>
            <th>价格</th>
            <th>库存量</th>
            <th>图片</th>
            <th>网址</th>
        </tr>
    
    <?php 
    while ($rows=mysql_fetch_row($rs)){
        echo '<tr>';
        echo '<td>'.$rows[0].'</td>';
        echo '<td>'.$rows[1].'</td>';
        echo '<td>'.$rows[2].'</td>';
        echo '<td>'.$rows[3].'</td>';
        echo '<td>'.$rows[4].'</td>';
        echo   $rows[5]==''?'<td>图片替换</td>':'<td><img src="'.$rows[5].'"></td>';
        echo '<td>'.$rows[6].'</td>';
        echo '</tr>';
    }
      
    ?>
    </table>
    <table border="1" width="500">
    <tr>
        <td>
         【<a href="?pageno=1">首页</a>】
          【<a href="?pageno=<?php echo $pageno-1?>">上一页</a>】
           【<a href="?pageno=<?php echo $pageno+1?>">下一页</a>】
            【<a href="?pageno=<?php echo $pagecount?>">末页</a>】
        </td>
        <td>
          <?php 
            for($i=1;$i<=$pagecount;$i++){
                echo '<a href="?pageno='.$i.'">'.$i.'</a> ';
            }
          ?>
        </td>
    </tr>
    </table>
    </body>
    </html>

完整代码：请点击左右的联系方式联系

[php]: https://blog.csdn.net/zhupengqq/article/details/79603690
[20180324103134364]: /images/20220529/c871f5d5697844f28e65f98554a6aaab.png
[20180324103226799]: /images/20220529/242a5b07a0fc424a8f430693f71cbd35.png
[20180324103405260]: /images/20220529/8acb7eb8a781447c8a07929a3ed78583.png
[20180324103603612]: /images/20220529/70b9b57ff8bf4d59ae11ee6bf86b2ec0.png