注册界面
<!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>注册处理界面
<?php
$name = $_POST['name'];
$dw = md5($_POST['dw']);
require_once "../ZY/YIN.class.php";
$db = new YIN();
$obj = "select count(*) from zc WHERE uname = '{$name}'";
$data = $db->StrQuery($obj);
//var_dump($data);
if ($data!='0'){
exit("用户名重复");
}else{
$sql = "insert into zc VALUES (NULL,'{$name}','{$dw}','')";
$data = $db->Query($sql,0);
echo "注册成功";
}登陆界面
<!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>登陆处理
<?php
$name = $_POST['uname'];
$m = $_POST['m'];//var_dump($_POST);require_once "YIN.class.php";$db = new YIN();
$obj = "select count(*) from zc WHERE uname = '{$name}'";
$data = $db->StrQuery($obj,1);
//var_dump($data);
if ($data != "0" ){//
echo "成功";
$obj_m = "select count(*) from zc WHERE pad = '{$m}'";
$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>
以上就是php实现登陆与注册的案例的详细内容，更多请关注php中文网其它相关文章！
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