php增删改查操作实例详解

1增 insert.php html head /head body form action="doinsert.php" method="POST" p ID:br/ input type="text" name="id" size="6" maxlength="6" / /p p 给自己起一个名号:br/ input type="text" name="name" size="10" maxlength="10" / /p p 给自己设一个

1增

insert.php

    ID:

   

    给自己起一个名号:

   

    给自己设一个密码:

   

    你的email地址:

   

   

doinsert.php

$linkID=@mysql_connect("localhost","root","123456");
if(!$linkID){
echo "没连接上";
}
$ss=@mysql_select_db("bean");
if(!$ss){
   echo "没找到数据库";
}
$id = $_POST['id'];
$name = $_POST['name'];
$password = $_POST['password'];
$email = $_POST['email'];

$query = "INSERT INTO member3 (id,name,password,email) values(       
       '$id','$name','$password','$email')";
//$query = "insert into member3 set
//      id='$id',name='$name',password='$password',email='$email'";

$result = mysql_query($query);

if($result) echo "

member successfuly insert!

";
else echo "

There was a problem inserting the member!

";

mysql_close();
include "insert.php" //返回并继续插入
?>

2查询并且修改

form.php

     choose a ID:
     1
     2
     3

modify.php

$linkID=@mysql_connect("localhost","root","123456");
$ss=@mysql_select_db("bean");

$rowID = $_POST['rowID'];
$query="select id ,name,password,email from member3 where id='$rowID'";
$result=mysql_query($query);
if(!$result){
echo "没执行成功";
}
//echo "$result";

list($id,$name,$password,$email)=mysql_fetch_row($result);
//echo "$id";
//echo "$name";
//echo "$password";
//echo "$email";
mysql_close();
include "modifyform.php";

?>

modifyform.php

ID:

         value="" />

你的名号:

         value="" />

你的密码:

         value="" />

你的邮箱:

         value="" />

   

update.php

$linkID=@mysql_connect("localhost","root","123456");
$db=@mysql_select_db("bean");

$rowID=$_POST['rowID'];
$id=$_POST['id'];
$name=$_POST['name'];
$password=$_POST['password'];
$email=$_POST['email'];
//echo $rowID;
$query=" UPDATE member3 SET   id='$id',name='$name',password='$password',email='$email'where id='$rowID' ";
//echo $query;
$result=mysql_query($query);

   if($result) echo "

member successfuly update!

";
else echo "

There was a problem updating the member!

";

mysql_close();
?>

3删除   多选删除

deleteform.php   复选框

1 zcl

2 lv

3 ed

4 d

  

deleteform1.php   多选下拉列表

     choose a ID:
     1
     2
     3

delete.php   遍历数组删除

$linkID=@mysql_connect("localhost","root","123456");
$db=@mysql_select_db("bean");
      //echo   $_POST['kk'];
      //echo array('1','2','3');
    foreach($_POST['kk'] as $pp)//遍历数组，给每个赋值
    {
    echo $pp;
    $rowID=$pp;
    $query="delete from member3 where id='$rowID'";//查询语句
    $result=mysql_query($query);//放到数据库执行
   
    if(!mysql_affected_rows()==0)
    echo "

选择的项".$rowID."已经成功的被删除！

" ;
   
    if(mysql_affected_rows()==0){
     echo "

没有找到记录！

" ;
    }
    }

  
?>