標籤：check required null rgba onsubmit sub 頁面 over 技術分享
純手寫打造。
：http://download.csdn.net/detail/qq_33599520/9779970
項目結構：
下面是代碼：
<!DOCTYPE html><html lang="cn"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>後台登陸</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">大資料的事件智能抓取和畫像後台登陸</div> <div id="darkbannerwrap"></div> <form name="login" action="php/login.php" method="post" onsubmit="return check()"><input name="name" id="name" placeholder="請輸入登入帳號" type="text" required="required" maxlength="16"><hr class="hr15"><input name="password" id="password" placeholder="請輸入登入密碼" type="password" required="required" maxlength="16"><hr class="hr15"><input value="登入" style="width:100%;" type="submit" name="submit"><a href="result.html">註冊</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>後台註冊</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">大資料的事件智能抓取和畫像後台註冊</div> <div id="darkbannerwrap"></div> <form name="result" action="php/result.php" method="post" onsubmit="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="請再次輸入密碼" type="password" required="required" maxlength="16"><hr class="hr15"><input value="註冊" style="width:100%;" type="submit" name="submit"><a href="login.html">返回登入</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("密碼不可為空"); $("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("密碼不可為空"); $("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 $db_username="root";//你的資料庫使用者名稱 $db_password="root";//你的資料庫密碼 $con = mysql_connect($server,$db_username,$db_password);//連結資料庫 if(!$con){ die("can‘t connect".mysql_error());//如果連結失敗輸出錯誤 } mysql_select_db(‘test‘,$con);//選擇資料庫（test是資料庫名稱） //字元轉換，讀庫mysql_query("set character set ‘utf-8‘");//寫庫mysql_query("set names ‘utf-8‘");?>
<?PHP header("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‘);//連結資料庫 $name = $_POST[‘name‘];//post獲得使用者名稱表單值 $passowrd = MD5($_POST[‘password‘]);//post獲得使用者密碼單值,使用MD5加密，無法復原 if ($name && $passowrd){//如果使用者名稱和密碼都不為空白 $sql = "select * from admin where username = ‘$name‘ and password=‘$passowrd‘";//檢測資料庫是否有對應的username和password的sql $result = mysql_query($sql);//執行sql $rows=mysql_num_rows($result);//返回一個數值 if($rows){//0 false 1 true //登入成功 session_start();//啟動Session $_SESSION[‘name‘] = $_POST[‘name‘]; header("refresh:0;url=sucess.php");//如果成功跳轉至sucess.php頁面 exit; }else{ echo "使用者名稱或密碼錯誤，請重新登入！"; echo " <script> setTimeout(function(){window.location.href=‘../login.html‘;},1000); </script> ";//如果錯誤使用js 1秒後跳轉到登入頁面重試; } }else{//如果使用者名稱或密碼有空 echo "使用者名稱或密碼填寫不完整，請重新登入！"; echo " <script> setTimeout(function(){window.location.href=‘../login.html‘;},1000); </script>"; //如果錯誤使用js 1秒後跳轉到登入頁面重試; } mysql_close();//關閉資料庫?>
<?phpsession_start();//初始化sessionsession_destroy();//登出sessionheader("location:../login.html");//登出session並跳轉?>
<?php header("Content-Type: text/html; charset=utf8"); if(!isset($_POST[‘submit‘])){ exit("錯誤執行"); }//判斷是否有submit操作 $name=$_POST[‘name‘];//post擷取表單裡的name $password=MD5($_POST[‘password‘]);//post擷取表單裡的password,使用MD5加密，無法復原 include(‘connect.php‘);//連結資料庫 $sql = "select username from admin where username = ‘$name‘";//SQL語句 $result = mysql_query($sql);//執行SQL語句 $num = mysql_num_rows($result);//統計執行結果影響的行數 if ($num) {//如果已經存在該使用者 echo "<script>alert(‘溫馨提示：使用者存在！‘); history.go(-1);</script>"; } else { $q="insert into admin(id,username,password) values (null,‘$name‘,‘$password‘)";//向資料庫插入表單傳來的值的sql $reslut=mysql_query($q,$con);//執行sql if (!$reslut){ die(‘Error: ‘ . mysql_error());//如果sql執行失敗輸出錯誤 }else{ echo "註冊成功";//成功輸出註冊成功 echo " <script> setTimeout(function(){window.location.href=‘../login.html‘;},1000); </script>"; //如果註冊成功使用js 1秒後跳轉到登入頁面; } } mysql_close($con);//關閉資料庫?>
<?PHPini_set("error_reporting","E_ALL & ~E_NOTICE");session_start();//啟動Sessionif(!$_SESSION[‘name‘]){ echo "<script language=‘javascript‘>alert(‘對不起，您未登入！‘);history.back();</script>";}?><html lang="cn"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>歡迎成功進入首頁！</title></head><body><h1>當前登入使用者：</h1><h2><?PHPecho $_SESSION[‘name‘];?></h2><a href="logout.php">登出使用者</a></body></html>
<?php ?>
純手寫，如果有不足之處請諒解。
PHP+MySQL登入註冊，完整版，詳細注釋
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