Case study of php implementation of login and registration-PHP Tutorial-php.cn

Case study of php implementation of login and registration

黄舟

Release： 2023-03-16 19:12:01

Original

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Registration interface

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form action="conduct.php" method="post">
    <input type="text" name="name" placeholder="用户名">
    <input type="password" name="dw" placeholder="密码">
    <input type="submit" value="提交">
</form>
</body>
</html>

Copy after login

Registration processing interface

<?php

$name = $_POST[&#39;name&#39;];
$dw = md5($_POST[&#39;dw&#39;]);
require_once "../ZY/YIN.class.php";
$db = new YIN();
$obj = "select count(*) from zc WHERE uname = &#39;{$name}&#39;";
$data = $db->StrQuery($obj);
//var_dump($data);
if ($data!=&#39;0&#39;){
    exit("用户名重复");
}else{
    $sql = "insert into zc VALUES (NULL,&#39;{$name}&#39;,&#39;{$dw}&#39;,&#39;&#39;)";
    $data = $db->Query($sql,0);
    echo "注册成功";
}

Copy after login

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form method="post" action="dlcl.php">
    <input type="text" name="uname" placeholder="用户名">
    <input type="password" name="m" placeholder="密码">
    <input type="submit" value="登陆">
</form>

</body>
</html>

Copy after login

<?php
$name = $_POST[&#39;uname&#39;];
$m = $_POST[&#39;m&#39;];//var_dump($_POST);require_once "YIN.class.php";$db = new YIN();
$obj = "select count(*) from zc WHERE uname = &#39;{$name}&#39;";
$data = $db->StrQuery($obj,1);
//var_dump($data);
if ($data != "0" ){//    
echo "成功";
$obj_m = "select count(*) from zc WHERE pad = &#39;{$m}&#39;";
$data_m = $db->StrQuery($obj_m,1);
if ($data_m!="0"){//    var_dump($data_m);
    echo "登陆成功";
}else{    header("location:denglu.php");
}
}else{    header("location:denglu.php");
}?>
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

</body>
</html>

Copy after login

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