\n
php\n<\/span>\/*<\/span>*\n * Created by PhpStorm.\n * User: andy\n * Date: 16-11-25\n * Time: 下午10:20\n <\/span>*\/<\/span>\n\nsession_start<\/span>();\n\n<\/span>$username<\/span> = $_POST<\/span>['username'];\n<\/span>$password<\/span> = $_POST<\/span>['password'];\n\n\n<\/span>$user<\/span> = new<\/span> User($username<\/span>, $password<\/span>);\n\n<\/span>\/\/<\/span>判斷登錄是否成功<\/span>\ntry<\/span>{\n Validate<\/span>::validateUser($user<\/span>);\n\n <\/span>\/\/<\/span>驗證通過，登錄成功<\/span>\n $_SESSION<\/span>['username']=$username<\/span>;\n <\/span>header<\/span>('location:main.php');\n}<\/span>catch<\/span> (MyException $me<\/span>){\n\n <\/span>\/\/<\/span>驗證失敗<\/span>\n header<\/span>('location:index.php');\n}\n\n\n<\/span>\/*<\/span>*\n * 自動加載類\n * @param $class\n * @return string\n <\/span>*\/<\/span>\nfunction<\/span> __autoload($class<\/span>)\n{\n <\/span>$file<\/span> = __DIR__ . '\/' . strtolower<\/span>($class<\/span>) . '.php';\n <\/span>if<\/span> (is_file<\/span>($file<\/span>)) {\n <\/span>include_once<\/span> $file<\/span>;\n }\n <\/span>return<\/span> '';\n}<\/span><\/pre>\n<\/div>\nView Code<\/span><\/div>\n3.3 myexception.php<\/p>\n
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php\n\n<\/span>\/*<\/span>*\n * Created by PhpStorm.\n * User: andy\n * Date: 16-11-25\n * Time: 下午10:50\n <\/span>*\/<\/span>\nclass<\/span> MyException extends<\/span> Exception<\/span>\n{\n\n}<\/span><\/pre>\n<\/div>\nView Code<\/span><\/div>\n3.4 user.php<\/p>\n
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php\n\n<\/span>\/*<\/span>*\n * Created by PhpStorm.\n * User: andy\n * Date: 16-11-25\n * Time: 下午10:29\n <\/span>*\/<\/span>\nclass<\/span> User\n{\n <\/span>private<\/span> $username<\/span> = '';\n <\/span>private<\/span> $password<\/span> = '';\n\n <\/span>function<\/span> __construct($username<\/span>, $password<\/span>)\n {\n <\/span>$this<\/span>->username = $username<\/span>;\n <\/span>$this<\/span>->password = $password<\/span>;\n }\n\n <\/span>\/*<\/span>*\n * 返回用戶名\n * @return string\n <\/span>*\/<\/span>\n public<\/span> function<\/span> getUsername(): string<\/span>\n {\n <\/span>return<\/span> $this<\/span>->username;\n }\n\n <\/span>\/*<\/span>*\n * 返回密碼\n * @return string\n <\/span>*\/<\/span>\n public<\/span> function<\/span> getPassword(): string<\/span>\n {\n <\/span>return<\/span> $this<\/span>->password;\n }\n}<\/span><\/pre>\n<\/div>\nView Code<\/span>\n<\/div>\n3.5 validate.php<\/p>\n
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php\n\n<\/span>\/*<\/span>*\n * 驗證類\n * Created by PhpStorm.\n * User: andy\n * Date: 16-11-25\n * Time: 下午10:34\n <\/span>*\/<\/span>\nclass<\/span> Validate\n{\n <\/span>\/*<\/span>*\n * 驗證用戶\n * @param User $user\n * @throws MyException\n <\/span>*\/<\/span>\n static<\/span> function<\/span> validateUser(User $user<\/span>)\n {\n <\/span>\/\/<\/span>print_r($user);<\/span>\n $username<\/span> = $user<\/span>->getUsername();\n <\/span>$password<\/span> = $user<\/span>->getPassword();\n\n <\/span>unset<\/span>($_SESSION<\/span>['validate_username'],$_SESSION<\/span>['validate_password']);\n\n <\/span>\/\/<\/span>驗證用戶名<\/span>\n try<\/span> {\n self<\/span>::validateUsername($username<\/span>);\n }<\/span>catch<\/span> (MyException $me<\/span>) {\n <\/span>$_SESSION<\/span>['validate_username']=$me<\/span>->getMessage();\n }\n\n <\/span>\/\/<\/span>驗證密碼<\/span>\n try<\/span> {\n self<\/span>::validatePassword($password<\/span>);\n }<\/span>catch<\/span> (MyException $me<\/span>) {\n <\/span>$_SESSION<\/span>['validate_password']=$me<\/span>->getMessage();\n }\n\n\n <\/span>if<\/span>(isset<\/span>($me<\/span>)){\n <\/span>throw<\/span> $me<\/span>;\n }\n\n }\n\n <\/span>\/*<\/span>*\n * 驗證用戶名\n * @param $username\n * @throws MyException\n <\/span>*\/<\/span>\n static<\/span> private<\/span> function<\/span> validateUsername($username<\/span>)\n {\n <\/span>$lem<\/span> = strlen<\/span>($username<\/span>);\n <\/span>if<\/span> ($lem<\/span> < 3) {\n <\/span>\/\/<\/span>拋出異常<\/span>\n throw<\/span> new<\/span> MyException('用戶名長度不能小于3位', E_USER_ERROR<\/span>);\n } <\/span>elseif<\/span> ($lem<\/span> > 8) {\n <\/span>throw<\/span> new<\/span> MyException('用戶名長度不能超過8位', E_USER_ERROR<\/span>);\n }\n }\n\n <\/span>\/*<\/span>*\n * 驗證密碼\n * @param $password\n * @throws MyException\n <\/span>*\/<\/span>\n static<\/span> private<\/span> function<\/span> validatePassword($password<\/span>)\n {\n <\/span>$lem<\/span> = strlen<\/span>($password<\/span>);\n <\/span>if<\/span> ($lem<\/span> < 3) {\n <\/span>\/\/<\/span>拋出異常<\/span>\n throw<\/span> new<\/span> MyException('密碼長度不能小于3位', E_USER_ERROR<\/span>);\n } <\/span>elseif<\/span> ($lem<\/span> > 8) {\n <\/span>throw<\/span> new<\/span> MyException('密碼長度不能超過8位', E_USER_ERROR<\/span>);\n }\n }\n\n}<\/span><\/pre>\n<\/div>\nView Code<\/span>\n<\/div>\n <\/p>\n
（End.）<\/p>\n
<\/div>\n
<\/div>"}
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PHP authentication user login example-study notes
PHP authentication user login example-study notes
Nov 30, 2016 pm 11:59 PM
1. Basic process:
2.UML class diagram:
3.PHP code:
3.1 index.php
<?<span style="color: #000000;">php
</span><span style="color: #008000;">/*</span><span style="color: #008000;">*
* Created by PhpStorm.
* User: andy
* Date: 16-11-25
* Time: 下午10:13
</span><span style="color: #008000;">*/</span>
<span style="color: #008080;">session_start</span><span style="color: #000000;">();
</span><span style="color: #800080;">$validate_username</span>=<span style="color: #0000ff;">isset</span>(<span style="color: #800080;">$_SESSION</span>['validate_username'])?<span style="color: #800080;">$_SESSION</span>['validate_username']:''<span style="color: #000000;">;
</span><span style="color: #800080;">$validate_password</span>=<span style="color: #0000ff;">isset</span>(<span style="color: #800080;">$_SESSION</span>['validate_password'])?<span style="color: #800080;">$_SESSION</span>['validate_password']:''<span style="color: #000000;">;
</span>?>
<html>
<head>
<meta charset="utf-8"/>
<title>用戶登錄</title>
</head>
<body>
<h1>用戶登錄</h1>
<form action="login.php" method="post"><span style="color: #000000;">
用戶名：</span><input type="text" name="username" value="" /><font color="red">
<?php <span style="color: #0000ff;">echo</span> <span style="color: #800080;">$validate_username</span>; ?>
</font><br /><br /><span style="color: #000000;">
密</span> 碼：<input type="password" name="password" value="" /><font color="red">
<?php <span style="color: #0000ff;">echo</span> <span style="color: #800080;">$validate_password</span>; ?>
</font><br /><br />
<input type="submit" value="提交" />
</form>
</body>
</html>
View Code
3.2 login.php
<?<span style="color: #000000;">php
</span><span style="color: #008000;">/*</span><span style="color: #008000;">*
* Created by PhpStorm.
* User: andy
* Date: 16-11-25
* Time: 下午10:20
</span><span style="color: #008000;">*/</span>
<span style="color: #008080;">session_start</span><span style="color: #000000;">();
</span><span style="color: #800080;">$username</span> = <span style="color: #800080;">$_POST</span>['username'<span style="color: #000000;">];
</span><span style="color: #800080;">$password</span> = <span style="color: #800080;">$_POST</span>['password'<span style="color: #000000;">];
</span><span style="color: #800080;">$user</span> = <span style="color: #0000ff;">new</span> User(<span style="color: #800080;">$username</span>, <span style="color: #800080;">$password</span><span style="color: #000000;">);
</span><span style="color: #008000;">//</span><span style="color: #008000;">判斷登錄是否成功</span>
<span style="color: #0000ff;">try</span><span style="color: #000000;">{
Validate</span>::validateUser(<span style="color: #800080;">$user</span><span style="color: #000000;">);
</span><span style="color: #008000;">//</span><span style="color: #008000;">驗證通過，登錄成功</span>
<span style="color: #800080;">$_SESSION</span>['username']=<span style="color: #800080;">$username</span><span style="color: #000000;">;
</span><span style="color: #008080;">header</span>('location:main.php'<span style="color: #000000;">);
}</span><span style="color: #0000ff;">catch</span> (MyException <span style="color: #800080;">$me</span><span style="color: #000000;">){
</span><span style="color: #008000;">//</span><span style="color: #008000;">驗證失敗</span>
<span style="color: #008080;">header</span>('location:index.php'<span style="color: #000000;">);
}
</span><span style="color: #008000;">/*</span><span style="color: #008000;">*
* 自動加載類
* @param $class
* @return string
</span><span style="color: #008000;">*/</span>
<span style="color: #0000ff;">function</span> __autoload(<span style="color: #800080;">$class</span><span style="color: #000000;">)
{
</span><span style="color: #800080;">$file</span> = __DIR__ . '/' . <span style="color: #008080;">strtolower</span>(<span style="color: #800080;">$class</span>) . '.php'<span style="color: #000000;">;
</span><span style="color: #0000ff;">if</span> (<span style="color: #008080;">is_file</span>(<span style="color: #800080;">$file</span><span style="color: #000000;">)) {
</span><span style="color: #0000ff;">include_once</span> <span style="color: #800080;">$file</span><span style="color: #000000;">;
}
</span><span style="color: #0000ff;">return</span> ''<span style="color: #000000;">;
}</span>
View Code
3.3 myexception.php
<?<span style="color: #000000;">php
</span><span style="color: #008000;">/*</span><span style="color: #008000;">*
* Created by PhpStorm.
* User: andy
* Date: 16-11-25
* Time: 下午10:50
</span><span style="color: #008000;">*/</span>
<span style="color: #0000ff;">class</span> MyException <span style="color: #0000ff;">extends</span> <span style="color: #0000ff;">Exception</span><span style="color: #000000;">
{
}</span>
View Code
3.4 user.php
<?<span style="color: #000000;">php
</span><span style="color: #008000;">/*</span><span style="color: #008000;">*
* Created by PhpStorm.
* User: andy
* Date: 16-11-25
* Time: 下午10:29
</span><span style="color: #008000;">*/</span>
<span style="color: #0000ff;">class</span><span style="color: #000000;"> User
{
</span><span style="color: #0000ff;">private</span> <span style="color: #800080;">$username</span> = ''<span style="color: #000000;">;
</span><span style="color: #0000ff;">private</span> <span style="color: #800080;">$password</span> = ''<span style="color: #000000;">;
</span><span style="color: #0000ff;">function</span> __construct(<span style="color: #800080;">$username</span>, <span style="color: #800080;">$password</span><span style="color: #000000;">)
{
</span><span style="color: #800080;">$this</span>->username = <span style="color: #800080;">$username</span><span style="color: #000000;">;
</span><span style="color: #800080;">$this</span>->password = <span style="color: #800080;">$password</span><span style="color: #000000;">;
}
</span><span style="color: #008000;">/*</span><span style="color: #008000;">*
* 返回用戶名
* @return string
</span><span style="color: #008000;">*/</span>
<span style="color: #0000ff;">public</span> <span style="color: #0000ff;">function</span> getUsername(): <span style="color: #0000ff;">string</span><span style="color: #000000;">
{
</span><span style="color: #0000ff;">return</span> <span style="color: #800080;">$this</span>-><span style="color: #000000;">username;
}
</span><span style="color: #008000;">/*</span><span style="color: #008000;">*
* 返回密碼
* @return string
</span><span style="color: #008000;">*/</span>
<span style="color: #0000ff;">public</span> <span style="color: #0000ff;">function</span> getPassword(): <span style="color: #0000ff;">string</span><span style="color: #000000;">
{
</span><span style="color: #0000ff;">return</span> <span style="color: #800080;">$this</span>-><span style="color: #000000;">password;
}
}</span>
View Code
3.5 validate.php
<?<span style="color: #000000;">php
</span><span style="color: #008000;">/*</span><span style="color: #008000;">*
* 驗證類
* Created by PhpStorm.
* User: andy
* Date: 16-11-25
* Time: 下午10:34
</span><span style="color: #008000;">*/</span>
<span style="color: #0000ff;">class</span><span style="color: #000000;"> Validate
{
</span><span style="color: #008000;">/*</span><span style="color: #008000;">*
* 驗證用戶
* @param User $user
* @throws MyException
</span><span style="color: #008000;">*/</span>
<span style="color: #0000ff;">static</span> <span style="color: #0000ff;">function</span> validateUser(User <span style="color: #800080;">$user</span><span style="color: #000000;">)
{
</span><span style="color: #008000;">//</span><span style="color: #008000;">print_r($user);</span>
<span style="color: #800080;">$username</span> = <span style="color: #800080;">$user</span>-><span style="color: #000000;">getUsername();
</span><span style="color: #800080;">$password</span> = <span style="color: #800080;">$user</span>-><span style="color: #000000;">getPassword();
</span><span style="color: #0000ff;">unset</span>(<span style="color: #800080;">$_SESSION</span>['validate_username'],<span style="color: #800080;">$_SESSION</span>['validate_password'<span style="color: #000000;">]);
</span><span style="color: #008000;">//</span><span style="color: #008000;">驗證用戶名</span>
<span style="color: #0000ff;">try</span><span style="color: #000000;"> {
self</span>::validateUsername(<span style="color: #800080;">$username</span><span style="color: #000000;">);
}</span><span style="color: #0000ff;">catch</span> (MyException <span style="color: #800080;">$me</span><span style="color: #000000;">) {
</span><span style="color: #800080;">$_SESSION</span>['validate_username']=<span style="color: #800080;">$me</span>-><span style="color: #000000;">getMessage();
}
</span><span style="color: #008000;">//</span><span style="color: #008000;">驗證密碼</span>
<span style="color: #0000ff;">try</span><span style="color: #000000;"> {
self</span>::validatePassword(<span style="color: #800080;">$password</span><span style="color: #000000;">);
}</span><span style="color: #0000ff;">catch</span> (MyException <span style="color: #800080;">$me</span><span style="color: #000000;">) {
</span><span style="color: #800080;">$_SESSION</span>['validate_password']=<span style="color: #800080;">$me</span>-><span style="color: #000000;">getMessage();
}
</span><span style="color: #0000ff;">if</span>(<span style="color: #0000ff;">isset</span>(<span style="color: #800080;">$me</span><span style="color: #000000;">)){
</span><span style="color: #0000ff;">throw</span> <span style="color: #800080;">$me</span><span style="color: #000000;">;
}
}
</span><span style="color: #008000;">/*</span><span style="color: #008000;">*
* 驗證用戶名
* @param $username
* @throws MyException
</span><span style="color: #008000;">*/</span>
<span style="color: #0000ff;">static</span> <span style="color: #0000ff;">private</span> <span style="color: #0000ff;">function</span> validateUsername(<span style="color: #800080;">$username</span><span style="color: #000000;">)
{
</span><span style="color: #800080;">$lem</span> = <span style="color: #008080;">strlen</span>(<span style="color: #800080;">$username</span><span style="color: #000000;">);
</span><span style="color: #0000ff;">if</span> (<span style="color: #800080;">$lem</span> < 3<span style="color: #000000;">) {
</span><span style="color: #008000;">//</span><span style="color: #008000;">拋出異常</span>
<span style="color: #0000ff;">throw</span> <span style="color: #0000ff;">new</span> MyException('用戶名長度不能小于3位', <span style="color: #ff00ff;">E_USER_ERROR</span><span style="color: #000000;">);
} </span><span style="color: #0000ff;">elseif</span> (<span style="color: #800080;">$lem</span> > 8<span style="color: #000000;">) {
</span><span style="color: #0000ff;">throw</span> <span style="color: #0000ff;">new</span> MyException('用戶名長度不能超過8位', <span style="color: #ff00ff;">E_USER_ERROR</span><span style="color: #000000;">);
}
}
</span><span style="color: #008000;">/*</span><span style="color: #008000;">*
* 驗證密碼
* @param $password
* @throws MyException
</span><span style="color: #008000;">*/</span>
<span style="color: #0000ff;">static</span> <span style="color: #0000ff;">private</span> <span style="color: #0000ff;">function</span> validatePassword(<span style="color: #800080;">$password</span><span style="color: #000000;">)
{
</span><span style="color: #800080;">$lem</span> = <span style="color: #008080;">strlen</span>(<span style="color: #800080;">$password</span><span style="color: #000000;">);
</span><span style="color: #0000ff;">if</span> (<span style="color: #800080;">$lem</span> < 3<span style="color: #000000;">) {
</span><span style="color: #008000;">//</span><span style="color: #008000;">拋出異常</span>
<span style="color: #0000ff;">throw</span> <span style="color: #0000ff;">new</span> MyException('密碼長度不能小于3位', <span style="color: #ff00ff;">E_USER_ERROR</span><span style="color: #000000;">);
} </span><span style="color: #0000ff;">elseif</span> (<span style="color: #800080;">$lem</span> > 8<span style="color: #000000;">) {
</span><span style="color: #0000ff;">throw</span> <span style="color: #0000ff;">new</span> MyException('密碼長度不能超過8位', <span style="color: #ff00ff;">E_USER_ERROR</span><span style="color: #000000;">);
}
}
}</span>
View Code
（End.）
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