$username = $this->username ?: 'someone';$email = $this->email ?: yii::$app->params['adminemail'];$password = yii::$app->getsecurity()->generatepasswordhash( $this->password ?: 'xx');$table = user::tablename();$auth_key = yii::$app->security->generaterandomstring();$status = user::status_active;$timestamp = time();$god = 1;$words = in the ${table} has a record which contains some value : ;$words .= '${username}', '${email}', '${password}', '${auth_key}', '${status}','${timestamp}', '${god}', '${timestamp}', '${god}' ;

上面的 word 怎样拼凑才能优雅些?
回复内容： $username = $this->username ?: 'someone';$email = $this->email ?: yii::$app->params['adminemail'];$password = yii::$app->getsecurity()->generatepasswordhash( $this->password ?: 'xx');$table = user::tablename();$auth_key = yii::$app->security->generaterandomstring();$status = user::status_active;$timestamp = time();$god = 1;$words = in the ${table} has a record which contains some value : ;$words .= '${username}', '${email}', '${password}', '${auth_key}', '${status}','${timestamp}', '${god}', '${timestamp}', '${god}' ;

上面的 word 怎样拼凑才能优雅些?
sprintf是个不错的方案
不过看你的代码感觉就是像把各种变量都打出来调试用，那么有个神器 get_defined_vars，变量名变量值都有了你值得拥有
一句话，尽量使用 orm 或者 数据库类 去操作数据库，而不要人工拼凑字符串，这样能有效防止 sql注入 的发生。yii 框架肯定是自带这些东西的，你上文档好好看看就好啦：http://www.yiiframework.com/doc/guide/1.1/en/database.dao#binding-para...
如果是单纯的拼接字符串的话一般情况下双引号内直接写变量名（不用花括号）就可以了，当然介于那个字段的拼接实在是有点丑你可以这么改写一下：
$words = in the $table has a record which contains some value: ;$words .= implode(, , array_map(function($item) { return '$item';}, [$username, $email, $password, $auth_key, $status, $timestamp, $god]) );
存数组遍历呗