How to simply modify mysql data in php
php method to simply modify mysql data: first connect to the database; then execute the SQL statement "select * from users;"; then query through "mysqli_query($conn,$sql);"; finally use the update method Just modify the mysql data.
The operating environment of this article: windows7 system, PHP7.1 version, DELL G3 computer
How to simply modify mysql data with php?
PHP Simple implementation of modifying data
index.php
<?php
$mysql_server_name='127.0.0.1'; //改成自己的mysql数据库服务器
$mysql_username='root'; //改成自己的mysql数据库用户名
$mysql_password=''; //改成自己的mysql数据库密码
$mysql_database='chuan'; //改成自己的mysql数据库名
$conn=mysqli_connect($mysql_server_name,$mysql_username,$mysql_password,$mysql_database) or die("error connecting") ; //连接数据库
$sql ="select * from users ;"; //SQL语句
$result = mysqli_query($conn,$sql); //查询
?>
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>可编辑表格DEMO</title>
</head>
<body>
<div class="container">
<table class="data" >
<tr>
<td>id</td>
<td>name</td>
<td >操作</td>
</tr>
<?php
while($row = mysqli_fetch_array($result))
{
echo "<tr>" ;
echo "<td>".$row['id']."</td>";
echo "<td>".$row['username']."</td>";
$id=$row['id'];
echo "<td><a href=update.php?id=$id>修改</a></td>";
echo " </tr>";
}
?>
</table>
</div>
</body>
</html>update.php
<?php
/**
* Created by PhpStorm.
* User: Administrator
* Date: 2018/6/17
* Time: 17:54
*/
$id = $_GET['id'];
$mysql_server_name='127.0.0.1'; //改成自己的mysql数据库服务器
$mysql_username='root'; //改成自己的mysql数据库用户名
$mysql_password=''; //改成自己的mysql数据库密码
$mysql_database='chuan'; //改成自己的mysql数据库名
$conn=mysqli_connect($mysql_server_name,$mysql_username,$mysql_password,$mysql_database) or die("error connecting") ; //连接数据库
$sql ="select * from users where id= $id ;"; //SQL语句
$result = mysqli_query($conn,$sql); //查询
while($row = mysqli_fetch_array($result))
{
$username=$row['username'];
}
?>
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>可编辑表格DEMO</title>
</head>
<body>
<form method="post" action="doUpdate.php?id=<?php echo $id ?>">
username:<input type="text" name='username' value=<?php echo $username?>><br/>
<input type="submit">
</form>
</body>
</html>doUpdate.php
<?php
$mysql_server_name='127.0.0.1'; //改成自己的mysql数据库服务器
$mysql_username='root'; //改成自己的mysql数据库用户名
$mysql_password=''; //改成自己的mysql数据库密码
$mysql_database='chuan'; //改成自己的mysql数据库名
$conn=mysqli_connect($mysql_server_name,$mysql_username,$mysql_password,$mysql_database) or die("error connecting") ; //连接数据库
$id = $_GET['id'];
$username = $_POST['username'];
$sql="update users set username= '"."$username' where id = $id";
$result= mysqli_query($conn,$sql);
if($result){
exit("<script>
alert('修改成功');
location.href='index.php'
</script>");
}else{
exit("<script>
alert('修改失败');
location.href='index.php';
</script>");
}
?>Recommended study: " PHP video tutorial》
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