PHP增删改查操作实例详解

来源：互联网发布：淘宝哪家男装店潮编辑：程序博客网时间：2024/05/22 03:04

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>
    给自己设一个密码:<br/>
    <input type="password" name="password" size="8" maxlength="8" value=""/>
</p>
<p>
    你的email地址:<br/>
    <input type="text" name="email" size="20" maxlength="20" value=""/>
</p>
<p>
    <input type="submit" name="submit" value="Submit!"/>
</p>
</form>
</body>
</html>

doinsert.php

<?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 "<p>member successfuly insert!</p>";
else echo "<p>There was a problem inserting the member!</p>";

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

2查询并且修改

form.php

<html>
<head>
</head>
<body>
<form action="modify.php" method="post">
<select name="rowID">
     <option value="">choose a ID:</option>
     <option value="1">1</option>
     <option value="2">2</option>
     <option value="3">3</option>
</select>
<input type="submit" name = "submit" value="Submit!"/>
</form>
</body>
</html>

modify.php

<?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

update.php

<?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 "<p>member successfuly update!</p>";
else echo "<p>There was a problem updating the member!</p>";

mysql_close();
?>

3删除多选删除

deleteform.php 复选框

deleteform1.php 多选下拉列表

<html>
<head>
</head>
<body>
<form action="delete.php" method="post">
<select name="kk[]" multiple="multiple">
     <option value="">choose a ID:</option>
     <option value="1">1</option>
     <option value="2">2</option>
     <option value="3">3</option>
</select>
<input type="submit" name = "submit" value="Submit!"/>
</form>
</body>
</html>

delete.php 遍历数组删除

<?php
$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 "<p>选择的项".$rowID."已经成功的被删除！</p>" ;

    if(mysql_affected_rows()==0){
     echo "<p>没有找到记录！</p>" ;
    }
    }


?>