PHP+MySQL登录注册，完整版，详细注释
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PHP+MySQL登录注册，完整版，详细注释
小編覺得挺不錯的,現(xiàn)在分享給大家,幫大家做個參考.
純手寫打造。
下載地址：http://download.csdn.net/detail/qq_33599520/9779970
項(xiàng)目結(jié)構(gòu)：
下面是代碼：
<!DOCTYPE html> <html lang="cn"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>后臺登陸</title> <link href="css/login.css" type="text/css" rel="stylesheet"> <script type="text/javascript" src="js/login.js"></script> </head> <body><div class="login"><div class="message">大數(shù)據(jù)的事件智能抓取和畫像后臺登陸</div><div id="darkbannerwrap"></div><form name="login" action="php/login.php" method="post" οnsubmit="return check()"><input name="name" id="name" placeholder="請輸入登錄帳號" type="text" required="required" maxlength="16"><hr class="hr15"><input name="password" id="password" placeholder="請輸入登錄密碼" type="password" required="required" maxlength="16"><hr class="hr15"><input value="登錄" style="width:100%;" type="submit" name="submit"><a href="result.html">注冊</a><a href="#">忘記密碼</a><hr class="hr20"></form></div> </body> </html><!DOCTYPE html> <html lang="cn"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>后臺注冊</title> <link href="css/result.css" type="text/css" rel="stylesheet"> <script type="text/javascript" src="js/result.js"></script> </head> <body><div class="login"><div class="message">大數(shù)據(jù)的事件智能抓取和畫像后臺注冊</div><div id="darkbannerwrap"></div><form name="result" action="php/result.php" method="post" οnsubmit="return check()"><input name="name" id="name" placeholder="請輸入帳號" type="text" required="required" maxlength="16"><hr class="hr15"><input name="password" id="password" placeholder="請輸入密碼" type="password" required="required" maxlength="16"><hr class="hr15"><input name="pwd" id="pwd" placeholder="請?jiān)俅屋斎朊艽a" type="password" required="required" maxlength="16"><hr class="hr15"><input value="注冊" style="width:100%;" type="submit" name="submit"><a href="login.html">返回登錄</a><a href="#">忘記密碼</a><hr class="hr20"></form></div> </body> </html>
function $(id) {return document.getElementById(id);}function check() {var password = $("password").value;if(password == "") {alert("密碼不能為空");$("password").focus();return false;}if(password.length < 6) {alert("密碼長度必須為6-16位");$("password").focus();return false;}}
function $(id) {return document.getElementById(id);}function check() {var password = $("password").value;var pwd = $("pwd").value;if(password == "") {alert("密碼不能為空");$("password").focus();return false;}if(password.length < 6) {alert("密碼長度必須為6-16位");$("password").focus();return false;}if(pwd != password) {alert("您兩次輸入的密碼不一致！");$("pwd").focus();return false;}}
*{font: 13px/1.5 '微軟雅黑', Verdana, Helvetica, Arial, sans-serif;-webkit-box-sizing: border-box;-moz-box-sizing: border-box;-box-sizing: border-box;padding:0;margin:0;list-style:none;box-sizing: border-box; }body,html{height:100%;overflow:hidden; } body{background:url(../images/web_login_bg.jpg) no-repeat center;background-size: cover; } a{color:#27A9E3;text-decoration:none;cursor:pointer; } .login{margin: 150px auto 0 auto;min-height: 420px;max-width: 420px;padding: 40px;background-color: #ffffff;margin-left: auto;margin-right: auto;border-radius: 4px;/* overflow-x: hidden; */box-sizing: border-box; } a.logo{display: block;height: 58px;width: 167px;margin: 0 auto 30px auto;background-size: 167px 42px; } .message {margin: 10px 0 0 -58px;padding: 18px 10px 18px 60px;background: #27A9E3;position: relative;color: #fff;font-size: 16px; } #darkbannerwrap {background: url(../images/aiwrap.png);width: 18px;height: 10px;margin: 0 0 20px -58px;position: relative; }input[type=text], input[type=file], input[type=password], input[type=email], select {border: 1px solid #DCDEE0;vertical-align: middle;border-radius: 3px;height: 50px;padding: 0px 16px;font-size: 14px;color: #555555;outline:none;width:100%; } input[type=text]:focus, input[type=file]:focus, input[type=password]:focus, input[type=email]:focus, select:focus {border: 1px solid #27A9E3; }input[type=submit], input[type=button]{display: inline-block;vertical-align: middle;padding: 12px 24px;margin: 0px;font-size: 18px;line-height: 24px;text-align: center;white-space: nowrap;vertical-align: middle;cursor: pointer;color: #ffffff;background-color: #27A9E3;border-radius: 3px;border: none;-webkit-appearance: none;outline:none;width:100%; } hr.hr15 {height: 15px;border: none;margin: 0px;padding: 0px;width: 100%; } hr.hr20 {height: 20px;border: none;margin: 0px;padding: 0px;width: 100%; }.copyright{font-size:14px;color:rgba(255,255,255,0.85);display:block;position:absolute;bottom:15px;right:15px; }
*{font: 13px/1.5 '微軟雅黑', Verdana, Helvetica, Arial, sans-serif;-webkit-box-sizing: border-box;-moz-box-sizing: border-box;-box-sizing: border-box;padding:0;margin:0;list-style:none;box-sizing: border-box; }body,html{height:100%;overflow:hidden; } body{background:url(../images/web_result_bg.jpg) no-repeat center;background-size: cover; } a{color:#27A9E3;text-decoration:none;cursor:pointer; } .login{margin: 150px auto 0 auto;min-height: 420px;max-width: 420px;padding: 40px;background-color: #ffffff;margin-left: auto;margin-right: auto;border-radius: 4px;/* overflow-x: hidden; */box-sizing: border-box; } a.logo{display: block;height: 58px;width: 167px;margin: 0 auto 30px auto;background-size: 167px 42px; } .message {margin: 10px 0 0 -58px;padding: 18px 10px 18px 60px;background: #27A9E3;position: relative;color: #fff;font-size: 16px; } #darkbannerwrap {background: url(../images/aiwrap.png);width: 18px;height: 10px;margin: 0 0 20px -58px;position: relative; }input[type=text], input[type=file], input[type=password], input[type=email], select {border: 1px solid #DCDEE0;vertical-align: middle;border-radius: 3px;height: 50px;padding: 0px 16px;font-size: 14px;color: #555555;outline:none;width:100%; } input[type=text]:focus, input[type=file]:focus, input[type=password]:focus, input[type=email]:focus, select:focus {border: 1px solid #27A9E3; }input[type=submit], input[type=button]{display: inline-block;vertical-align: middle;padding: 12px 24px;margin: 0px;font-size: 18px;line-height: 24px;text-align: center;white-space: nowrap;vertical-align: middle;cursor: pointer;color: #ffffff;background-color: #27A9E3;border-radius: 3px;border: none;-webkit-appearance: none;outline:none;width:100%; } hr.hr15 {height: 15px;border: none;margin: 0px;padding: 0px;width: 100%; } hr.hr20 {height: 20px;border: none;margin: 0px;padding: 0px;width: 100%; }.copyright{font-size:14px;color:rgba(255,255,255,0.85);display:block;position:absolute;bottom:15px;right:15px; }
<?php$server="localhost";//主機(jī)$db_username="root";//你的數(shù)據(jù)庫用戶名$db_password="root";//你的數(shù)據(jù)庫密碼$con = mysql_connect($server,$db_username,$db_password);//鏈接數(shù)據(jù)庫if(!$con){die("can't connect".mysql_error());//如果鏈接失敗輸出錯誤}mysql_select_db('test',$con);//選擇數(shù)據(jù)庫（test是數(shù)據(jù)庫名稱）//字符轉(zhuǎn)換，讀庫mysql_query("set character set 'utf-8'");//寫庫mysql_query("set names 'utf-8'"); ?>
<?PHPheader("Content-Type: text/html; charset=utf8");if(!isset($_POST["submit"])){exit("非法訪問！");}//檢測是否有submit操作 include('connect.php');//鏈接數(shù)據(jù)庫$name = $_POST['name'];//post獲得用戶名表單值$passowrd = MD5($_POST['password']);//post獲得用戶密碼單值,使用MD5加密，不可逆if ($name && $passowrd){//如果用戶名和密碼都不為空$sql = "select * from admin where username = '$name' and password='$passowrd'";//檢測數(shù)據(jù)庫是否有對應(yīng)的username和password的sql$result = mysql_query($sql);//執(zhí)行sql$rows=mysql_num_rows($result);//返回一個數(shù)值if($rows){//0 false 1 true//登錄成功session_start();//啟動Session$_SESSION['name'] = $_POST['name'];header("refresh:0;url=sucess.php");//如果成功跳轉(zhuǎn)至sucess.php頁面exit;}else{echo "用戶名或密碼錯誤，請重新登錄！";echo "<script>setTimeout(function(){window.location.href='../login.html';},1000);</script>";//如果錯誤使用js 1秒后跳轉(zhuǎn)到登錄頁面重試;}}else{//如果用戶名或密碼有空echo "用戶名或密碼填寫不完整，請重新登錄！";echo "<script>setTimeout(function(){window.location.href='../login.html';},1000);</script>";//如果錯誤使用js 1秒后跳轉(zhuǎn)到登錄頁面重試;}mysql_close();//關(guān)閉數(shù)據(jù)庫 ?>
<?phpsession_start();//初始化sessionsession_destroy();//注銷sessionheader("location:../login.html");//注銷session并跳轉(zhuǎn) ?>
<?php header("Content-Type: text/html; charset=utf8");if(!isset($_POST['submit'])){exit("錯誤執(zhí)行");}//判斷是否有submit操作$name=$_POST['name'];//post獲取表單里的name$password=MD5($_POST['password']);//post獲取表單里的password,使用MD5加密，不可逆include('connect.php');//鏈接數(shù)據(jù)庫$sql = "select username from admin where username = '$name'";//SQL語句$result = mysql_query($sql);//執(zhí)行SQL語句$num = mysql_num_rows($result);//統(tǒng)計(jì)執(zhí)行結(jié)果影響的行數(shù)if ($num) {//如果已經(jīng)存在該用戶echo "<script>alert('溫馨提示：用戶存在！'); history.go(-1);</script>";} else {$q="insert into admin(id,username,password) values (null,'$name','$password')";//向數(shù)據(jù)庫插入表單傳來的值的sql$reslut=mysql_query($q,$con);//執(zhí)行sqlif (!$reslut){die('Error: ' . mysql_error());//如果sql執(zhí)行失敗輸出錯誤}else{echo "注冊成功";//成功輸出注冊成功echo "<script>setTimeout(function(){window.location.href='../login.html';},1000);</script>";//如果注冊成功使用js 1秒后跳轉(zhuǎn)到登錄頁面;}}mysql_close($con);//關(guān)閉數(shù)據(jù)庫 ?>
<?PHPini_set("error_reporting","E_ALL & ~E_NOTICE");session_start();//啟動Sessionif(!$_SESSION['name']){echo "<script language='javascript'>alert('對不起，您未登錄！');history.back();</script>";} ?> <html lang="cn"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>歡迎成功進(jìn)入首頁！</title> </head> <body><h1>當(dāng)前登錄用戶：</h1><h2><?PHPecho $_SESSION['name'];?></h2><a href="logout.php">注銷用戶</a> </body> </html>
<?php ?>
純手寫，如果有不足之處請諒解。
轉(zhuǎn)載于:https://www.cnblogs.com/ceet/p/6545473.html
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