簡單JS示例：

var login = $( 'form[name=login]' );login.submit( function () {if (validate.loginAccount && validate.loginPwd) {return true;}$( 'input[name=account]', login ).trigger('blur');$( 'input[name=pwd]', login ).trigger('blur');return false;} );$( 'input[name=account]', login ).blur( function () {var account = $( this ).val();var span = $( '#login-msg' );if (account == '') {span.html( '請填入帳號' );validate.loginAccount = false;return;}} );$( 'input[name=pwd]', login ).blur( function () {var account = $( 'input[name=account]', login ).val();var pwd = $( this ).val();var span = $( '#login-msg' );if (pwd == '') {span.html( '請填寫密碼' );validate.loginPwd = false;return;}if (account == '') {span.html( '請填入帳號' );validate.loginAccount = false;return;}var data = {account : account,password : pwd};$.post(CONTROL + 'checkLogin', data, function (status) {if (status) {span.html( '' );validate.loginAccount = true;validate.loginPwd = true;} else {span.html( '帳號或密碼不正確' );validate.loginAccount = false;validate.loginPwd = false;}}, 'json');} );

異步驗證：

//異步驗證登錄帳號與密碼 Public function checkLogin () {if (!$this->isAjax()) halt('頁面不存在');$account = $this->_post('account');$where = array('account' => $account);$pwd = M('user')->where($where)->getField('password');if (!$pwd || $pwd != $this->_post('password', 'md5')) {echo 0;} else {echo 1;} }

登錄表單處理：

//登錄表單處理 Public function login () {if (!$this->isPost()) halt('頁面不存在');$db = M('user');$where = array('account' => $this->_post('account'));$field = array('id', 'username', 'password', 'logintime', 'lock');$user = $db->where($where)->field($field)->find();if (!$user || $user['password'] != $this->_post('pwd', 'md5')) {$this->error('帳號或密碼錯誤');}if ($user['lock']) {$this->error('帳號被鎖定');}if (isset($_POST['auto'])) {$value = $user['id'] . '|' . get_client_ip() . '|' . $user['username'];$value = encrytion($value, 1);@setcookie('auto', $value, C('AUTO_LOGIN_LIFETIME'), '/');}//每天登錄增加經驗$today = strtotime(date('Y-m-d'));$where = array('id' => $user['id']);if ($user['logintime'] < $today) {$db->where($where)->setInc('exp', C('LV_LOGIN'));}$db->where($where)->save(array('logintime' => time()));session('uid', $user['id']);session('username', $user['username']);redirect($_SERVER['HTTP_REFERER']); }

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轉載于:https://www.cnblogs.com/e0yu/p/7446055.html

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