用PHP向数据库中实现简单的增删改查（纯代码，待完善），php增删
![用PHP向数据库中实现简单的增删改查（纯代码，待完善），php增删_PHP教程]()
php
$con =
mysql_connect("localhost:3306","root",""
);
if (!
$con) {
die('Could not connect: ' .
mysql_error());
}
mysql_select_db("test",
$con);
$result =
mysql_query("SELECT * FROM user"
);
echo "
| Username |
Password |
";
while($row = mysql_fetch_array($result)) {
echo "";
echo "| " . $row['username'] . " | ";
echo "" . $row['password'] . " | ";
echo "
";
}
echo "
";
mysql_close($con);
?>
从服务器中获取用户所有信息（SQL SELECT语句）并以表格形式出现
![用PHP向数据库中实现简单的增删改查（纯代码，待完善），php增删_PHP教程]()
php
$con = mysql_connect("localhost","root","");
if (!$con) {
die('Could not connect: ' . mysql_error());
}
mysql_select_db("test", $con);
mysql_query("DELETE FROM user WHERE username = '$_POST[username]'");
mysql_close($con);
?>
删除该用户所有信息delete.php
![用PHP向数据库中实现简单的增删改查（纯代码，待完善），php增删_PHP教程]()
php
$con = mysql_connect("localhost:3306","root","");
if (!$con) {
die('Could not connect: ' . mysql_error());
}
mysql_select_db("test", $con);
$sql = "INSERT INTO user (username,password)
VALUES
('$_POST[username]','$_POST[password]')";
if (!mysql_query($sql,$con)) {
die('Error: ' . mysql_error());
}
echo "1 record added";
mysql_close($con);
?>
注册一个新用户insert.php
![用PHP向数据库中实现简单的增删改查（纯代码，待完善），php增删_PHP教程]()
php
$con = mysql_connect("localhost","root","");
if (!$con) {
die('Could not connect: ' . mysql_error());
}
mysql_select_db("test", $con);
mysql_query("UPDATE user SET password = '$_POST[password]' WHERE username = '$_POST[username]'");
mysql_close($con);
?>
修改一个用户密码update.php
![用PHP向数据库中实现简单的增删改查（纯代码，待完善），php增删_PHP教程]()
html>
head>
title>FORMtitle>
head>
body>
br />
h1>Insert:h1>
form action="insert.php" method="post">
username:input type="name" name="username"/>
br />
password:input type="password" name="password"/>
input type="submit" value="submit"/>
form>
br />hr />br />
h1>Deleteh1>
form action="delete.php" method="post">
username:input type="name" name="username" />
br />
Are you sure?input type="submit" value="sure" />
form>
br />hr />br />
h1>Updateh1>
form action="update.php" method="post">
username:input type="name" name="username"/>
br />
You want to change your password into:input type="password" name="password"/>
input type="submit" value="submit"/>
form>
br />hr />br />
body>
html>
以上三个功能的提交源Operate.html
http://www.bkjia.com/PHPjc/1030847.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/1030847.htmlTechArticle用PHP向数据库中实现简单的增删改查（纯代码，待完善），php增删 ? php $con = mysql_connect ("localhost:3306","root","" ); if (! $con ) { die ('Could not con...
