YII框架接收不到post参数？

先上代码 错误肯定就在这两个里边 但是不知道怎么解决 附网址:http://182.61.37.188/?r=login/entry

1. LoginController

<code><?php /**
 * Created by PhpStorm.
 * User: xin
 * Date: 16/6/29
 * Time: 上午9:28
 */

namespace app\controllers;
use Yii;
use yii\base\Controller;
use app\models\Userdb;
use app\models\EntryForm;

class LoginController extends Controller{
    public function actionEntry(){

        $model = new EntryForm;
        if ($model->load(Yii::$app-&gt;request-&gt;post())) {

            print_r($model);
            print_r(Yii::$app-&gt;request-&gt;post('userName'));
            $info = new  Userdb();
            $info-&gt;userName = $model-&gt;username;
            $info-&gt;password = $model-&gt;password;
            $info-&gt;save();

            return $this-&gt;render('showinfo', ['model' =&gt; $model]);
        }else{
            return $this-&gt;render('entry',['model' =&gt; $model]);
        }

    }
}</code>

2.entry.php

<code><?php /**
 * Created by PhpStorm.
 * User: xin
 * Date: 16/6/29
 * Time: 上午9:37
 */

use yii\helpers\Html;
use yii\widgets\ActiveForm;
?>
<?php $form = ActiveForm::begin([
    'id' => 'login-form',
    'options' =&gt; ['class' =&gt; 'form-horizontal'],
    'fieldConfig' =&gt; [
        'template' =&gt; "{label}\n<div class='\"col-lg-3\"'>{input}</div>\n<div class='\"col-lg-8\"'>{error}</div>",
        'labelOptions' =&gt; ['class' =&gt; 'col-lg-1 control-label'],
    ],
]); ?&gt;

= $form-&gt;field($model, 'username')-&gt;textInput(['autofocus' =&gt; true]) ?&gt;

= $form-&gt;field($model, 'password')-&gt;passwordInput() ?&gt;

    <div class="form-group">
        <div class="col-lg-offset-1 col-lg-11">
            = Html::submitButton('Login', ['class' =&gt; 'btn btn-primary', 'name' =&gt; 'login-button']) ?&gt;
        </div>
    </div>

<?php ActiveForm::end(); ?></code>

回复内容：

先上代码 错误肯定就在这两个里边 但是不知道怎么解决 附网址:http://182.61.37.188/?r=login/entry

1. LoginController

<code><?php /**
 * Created by PhpStorm.
 * User: xin
 * Date: 16/6/29
 * Time: 上午9:28
 */

namespace app\controllers;
use Yii;
use yii\base\Controller;
use app\models\Userdb;
use app\models\EntryForm;

class LoginController extends Controller{
    public function actionEntry(){

        $model = new EntryForm;
        if ($model->load(Yii::$app-&gt;request-&gt;post())) {

            print_r($model);
            print_r(Yii::$app-&gt;request-&gt;post('userName'));
            $info = new  Userdb();
            $info-&gt;userName = $model-&gt;username;
            $info-&gt;password = $model-&gt;password;
            $info-&gt;save();

            return $this-&gt;render('showinfo', ['model' =&gt; $model]);
        }else{
            return $this-&gt;render('entry',['model' =&gt; $model]);
        }

    }
}</code>

2.entry.php

<code><?php /**
 * Created by PhpStorm.
 * User: xin
 * Date: 16/6/29
 * Time: 上午9:37
 */

use yii\helpers\Html;
use yii\widgets\ActiveForm;
?>
<?php $form = ActiveForm::begin([
    'id' => 'login-form',
    'options' =&gt; ['class' =&gt; 'form-horizontal'],
    'fieldConfig' =&gt; [
        'template' =&gt; "{label}\n<div class='\"col-lg-3\"'>{input}</div>\n<div class='\"col-lg-8\"'>{error}</div>",
        'labelOptions' =&gt; ['class' =&gt; 'col-lg-1 control-label'],
    ],
]); ?&gt;

= $form-&gt;field($model, 'username')-&gt;textInput(['autofocus' =&gt; true]) ?&gt;

= $form-&gt;field($model, 'password')-&gt;passwordInput() ?&gt;

    <div class="form-group">
        <div class="col-lg-offset-1 col-lg-11">
            = Html::submitButton('Login', ['class' =&gt; 'btn btn-primary', 'name' =&gt; 'login-button']) ?&gt;
        </div>
    </div>

<?php ActiveForm::end(); ?></code>

做个调试看看，你先别用框架自带的Yii::$app->request->post()获取，直接在控制器方法程序入口var_dump($_POST)看看有没有值

通过$model->load(Yii::$app->request->post())就已经获取到了EntryForm的实例$model；打印$model->username试试

你可以尝试这种方法：

<code>$model-&gt;load(Yii::$app-&gt;request-&gt;post(), '' );</code>