php增删改查示例
来源：互联网 发布：淘宝修改评价的链接 编辑：程序博客网 时间：2024/05/05 12:14
创建数据库和用户CREATE DATABASE mysite;grant all on mysite.* to mysite@localhost identified by '123456';flush privileges;
create database onbing;grant all on onbing.* to onbing@localhost identified by 'h123TYBcd';flush privileges;
对于已存在的数据库和用户，使用如下方法：首先确认数据库(为空)和用户；use mysqlselect user from user where User='onbing';update user set password=password('h123TYBcd') where User='onbing';grant all on onbing.* to onbing@localhost;flush privileges;
在本地hosts文件中添加dns解析192.168.1.24 www.onbing.com
建表：CREATE TABLE user(id int(5) DEFAULT '1' NOT NULL AUTO_INCREMENT, name varchar(20), city varchar(20), postcode varchar(10),address varchar(100), password varchar(10), level tinyint(2) DEFAULT '0',right tinyint(2),email varchar(40), PRIMARY KEY (id), UNIQUE id (id));
CREATE TABLE news(id int(5) DEFAULT '1' NOT NULL , title varchar(100), dates datetime, contents varchar(200), PRIMARY KEY (id), UNIQUE id (id));alter table news modify id integer auto_increment;
INSERT INTO myuser VALUES (1,'王友','北京','100083','北京市海淀区学院路',111,0,0,'wangyou000@263.net');INSERT INTO myuser VALUES (2,'金风','武汉','430071','武汉市武昌区水果湖',111,0,0,'jinfeng000@263.net');INSERT INTO myuser VALUES (3,'常丽','襄樊','441021','襄樊市襄城区南街',111,0,0,'changli000@263.net');
1.链接数据库通用方法：conn.php
<?php //第一步：链接数据库 $conn=@mysql_connect("localhost:3306","root","123456")or die ("mysql链接失败"); //第二步: 选择指定的数据库，设置字符集 @mysql_select_db("mysite",$conn) or die ("db链接失败".mysql_error()); mysql_query('SET NAMES UTF8')or die ("字符集设置错误"); ?>
2.增加 add.php
<?php include("conn.php");//引入链接数据库 if(!empty($_POST['sub'])){ $title=$_POST['title']; $con=$_POST['con']; echo $sql="insert into news(title,dates,contents) value ('$title',now(),'$con')" ; mysql_query($sql); echo"插入成功"; } ?> <form action="add.php" method="post"> 标题: <input type="text" name="title"><br> 内容: <textarea rows="5" cols="50" name="con"></textarea><br> <input type="submit" name="sub" value="发表"> </form>
3.删除 del.php
<?phpinclude("conn.php");//引入链接数据库if(!empty ($_GET['id'])){$sql="select * from news where id='".$_GET['id']."'";$query=mysql_query($sql);$rs=mysql_fetch_array($query);}?><form action="edit.php" method="post"><input type="hidden" name="hid" value="<?php echo $rs['id']?>"/>标题: <input type="text" name="title" value="<?php echo $rs['title']?>"><br>内容: <textarea rows="5" cols="50" name="con"><?php echo $rs['contents']?></textarea><br><input type="submit" name="sub" value="发表"></form></pre><br><?phpif(!empty($_GET['del'])){ $d=$_GET['del']; $sql="delete from news where id ='$d'"; } $query=mysql_query($sql); echo "删除成功"; ?><p></p><pre></pre><br>
4.改 edit.php页面 <p></p> <p><br> </p> <p></p><pre name="code" class="html"><?php include("conn.php");//引入链接数据库 if(!empty ($_GET['id'])){ $sql="select * from news where id='".$_GET['id']."'"; $query=mysql_query($sql); $rs=mysql_fetch_array($query); } if(!empty($_POST['sub'])){ $title=$_POST['title']; $con=$_POST['con']; $hid=$_POST['hid']; $sql="update news set title='$title',contents='$con' where id='$hid' limit 1 "; mysql_query($sql); echo "<script> alert('更新成功'); location.href='select.php'</script>"; echo"更新成功"; } ?> <form action="edit.php" method="post"> <input type="hidden" name="hid" value="<?php echo $rs['id']?>"/> 标题: <input type="text" name="title" value="<?php echo $rs['title']?>"><br> 内容: <textarea rows="5" cols="50" name="con"><?php echo $rs['contents']?></textarea><br> <input type="submit" name="sub" value="发表"> </form></pre><br>
5.查询页面 select.php<pre name="code" class="html"><a href="add.php">添加内容</a> <hr> <hr> <form> <input type="text" name="keys" /> <input type="submit" name="subs" value="搜索"/> </form> <?php include("conn.php");//引入链接数据库 if(!empty($_GET['keys'])){ $w=" title like '%".$_GET['keys']."%'"; }else{ $w=1; } $sql="select * from news where $w order by id desc"; $query=mysql_query($sql); while($rs=mysql_fetch_array($query)){ ?> <h2>标题:<a href="view.php?id=<?php echo $rs['id'] ?>"><?php echo $rs['title'] ?></a> <a href="edit.php?id=<?php echo $rs['id'] ?>">编辑</a>｜｜<a href="del.php?del=<?php echo $rs['id'] ?>">删除</a></h2> <li><?php echo $rs['dates'] ?></li> <p><?php echo $rs['contents'] ?></p> <hr> <?php } ?> </pre><br> <p></p> <p><br> </p>
1.查寻全部
<html> <head> <title> 查寻全部</title> </head> <body> <h2 align=center> 下面是用户数据库的所有内容： </h2> <? $db = MySQL_connect("localhost", "root"); MySQL_select_db("mysite",$db); $result = MySQL_query("SELECT * FROM user",$db); echo "<table border=1>\n"; echo "<tr><td>id</td><td>姓名</td>"; echo "<td>城市</td><td>邮编</td>"; echo "<td>住 址</td><td>等级</td>"; echo "<td>权限</td><td>邮件地址</td>"; echo "</tr>\n"; while ($myrow = MySQL_fetch_row($result)) { printf("<tr><td>%s</td><td>%s</td>", $myrow[0], $myrow[1]); printf("<td>%s</td><td>%s</td>", $myrow[2], $myrow[3]); printf("<td>%s</td><td>%s</td>", $myrow[4], $myrow[6]); printf("<td>%s</td><td>%s</td></tr>\n", $myrow[7], $myrow[8]); } echo "</table>\n"; ?> </body> </html>
2.根据id查询
<html> <body> <title> 根据id查询 </title> <? $db = MySQL_connect("localhost", "root"); MySQL_select_db("mysite",$db); if ($id) { $result = MySQL_query("SELECT * FROM user WHERE id=$id",$db); $myrow = MySQL_fetch_array($result); printf("<h2 align=left>用户的情况</h2>"); printf("1.ID号 %s\n<br>", $myrow["id"]); printf("2.姓名: %s\n<br>", $myrow["name"]); printf("3.城市: %s\n<br>", $myrow["city"]); printf("4.邮编: %s\n<br>", $myrow["postcode"]); printf("5.住址: %s\n<br>", $myrow["address"]); printf("6.等级：%s\n<br>", $myrow["level"]); printf("7.邮件地址: %s\n<br>", $myrow["email"]); printf("<a href=\"%s\"> 继续查询 </a>", $PATH_INFO); } else { $result = MySQL_query("SELECT * FROM user",$db); if ($myrow = MySQL_fetch_array($result)) { printf("<h2 align=left>请选择要查询的用户：</h2>"); do { printf("%s<a href=\"%s?id=%s\">%s </a><br>\n", $myrow["id"],$PATH_INFO,$myrow["id"], $myrow["name"]); } while ($myrow = MySQL_fetch_array($result)); } else { echo "对不起，没有数据！"; } } ?> </body> </html>
3.更新
<html> <body> <title> 更新 </title> <? //PHP程序的开始 $db = MySQL_connect("localhost", "root"); MySQL_select_db("mysite",$db); if (!$id) { $result = MySQL_query("SELECT * FROM user",$db); if ($myrow = MySQL_fetch_array($result)) { printf("<h2 align=left>请选择要修改的用户名字：</h2>"); do { printf("%s<a href=\"%s?id=%s\">%s </a><br>\n", $myrow["id"],$PATH_INFO,$myrow["id"], $myrow["name"]); } while ($myrow = MySQL_fetch_array($result)); } else { echo "对不起！数据库中没有记录"; } } else { if ($submit) { $sql = "UPDATE user SET name='$name',city='$city', address='$address',email='$email' WHERE id=$id"; $result = MySQL_query($sql); echo "谢谢！数据更改完成\n"; } else { $sql = "SELECT * FROM user WHERE id=$id"; $result = MySQL_query($sql); $myrow = MySQL_fetch_array($result); //以下不是PHP的部分 ?> <h2 align=left>请对用户的信息进行修改：</h2> <form method="post" action="<? echo $PATH_INFO ?>"> <input type=hidden name="id" value="<?php echo $myrow["id"] ?>"> 姓名：<input type="Text" name="first" value="<?php echo $myrow["name"] ?>"><br> 城市：<input type="Text" name="city" value="<?php echo $myrow["city"] ?>"><br> 住址：<input type="Text" name="address" value="<?php echo $myrow["address"] ?>"><br> 电子邮件：<input type="Text" name="email" value="<?php echo $myrow["email"] ?>"><br> <input type="Submit" name="submit" value="修改完毕"> </form> <? //PHP 的结束 65：} } ?> </body> </html>
4.增加删除记录
<html> <body> <title> 增加删除记录 </title> <? $db = MySQL_connect("localhost", "root"); MySQL_select_db("mysite",$db); &nb, sp; if ($submit) { $sql = "INSERT INTO myuser (name,city,address,email) VALUES ('$name','$city','$address','$email')"; $result = MySQL_query($sql); echo "记录添加成功！<p>"; } else if ($delete) { // 删除一条记录 $sql = "DELETE FROM myuser WHERE id=$id"; $result = MySQL_query($sql); echo "记录删除成功！<p>"; } else { printf("<h2 align=left>删除一个用户的所有信息：</h2>"); $result = MySQL_query("SELECT * FROM myuser",$db); while ($myrow = MySQL_fetch_array($result)) { printf("%s:<a href=\"%s?id=%s&delete=yes\">%s</a> <br>\n", $myrow["id"],$PATH_INFO, $myrow["id"], $myrow["name"]); } ?> <P> <h2 align=left> 添加一个新的用户： </h2> <form method="post" action="<?php echo $PATH_INFO?>"> 姓名：<input type="Text" name="name" value="<?php echo $myrow["name"] ?>"><br> 城市：<input type="Text" name="city" value="<?php echo $myrow["city"] ?>"><br> 住址：<input type="Text" name="address" value="<?php echo $myrow["address"] ?>"><br> 电子邮件：<input type="Text" name="email" value="<?php echo $myrow["email"] ?>"><br> <input type="Submit" name="submit" value="添加用户"> </form>
- php增删改查示例
- php增删改查示例代码
- Redis增删改查示例
- PHP编程：增删改查
- php的增删改查
- php简易增删改查
- PHP MySql增删改查
- php增删改查，demo
- PHP MySQLi 增删改查
- PHP MySQLi 增删改查
- PHP MySql增删改查
- mongodb php 增删改查
- PHP开发增删改查
- PHP增删改查代码
- java程序标准增删改查示例
- xml的增删改查示例
- 使用jdbc实现增删改查示例
- Hibernate 简单的增删改查 示例
- Request对象的主要方法
- PID调节整理
- Ubuntu 升级 本地 git
- 浅谈CSDN博客的用户体验
- AFNetworking post一个图片的data 到服务器
- php增删改查示例
- Log4J学习【九】Log4J的配置
- ac 数据面相关
- 制作透明背景图片，按钮
- px or dp
- 软件研发思考-发现操作的策略与启发
- 学了点mootools的东西和jquery比较下
- Log4J学习【十一】Properties配置方式测试
- Oracle学习
