ZZCX_yii/common/models/commonModel.php

<?php

/**
 * Created by PhpStorm.
 * User: Steven
 * Date: 2017/10/13
 * Time: 12:12
 *
 * 用于不继承自 \yii\db\ActiveRecord的Model,不做表是否存在的判断
 */
namespace common\models;

use yii\base\Model;
class commonModel extends Model
{
    /**
     * Author:Steven
     * Desc:验证失败后取第一条错误信息
     * @return string
     */
    public function getErrorMsg(){
        $errors = $this->getFirstErrors();
        $str = [];
        foreach ($errors as $error) {
            $str[] = $error;
        }
        return implode('；', $str);
    }
}