Yii框架中的数据校验：确保数据正确性

// 创建一个校验器并传递数据
$validator = new yiialidatorsValidator;
$validator->attributes = [
    'name',
];

// 添加一些校验规则
$validator->rules = [
    ['name', 'required'],
    ['name', 'string', 'min' => 3, 'max' => 255],
];

// 实施数据校验
if (!$validator->validate($data)) {
    foreach ($validator->errors as $key => $errors) {
        echo "$key:";
        foreach ($errors as $error) {
            echo " $error";
        }
        echo "
";
    }
} else {
    echo "数据格式正确
";
}

// 创建一个数据模型
class ExampleModel extends yiiaseModel
{
    public $id;
    public $name;

    // 规则校验
    public function rules()
    {
        return [
            // 确保ID是数字
            ['id', 'integer'],
            // 确保姓名是必须的，长度在3到255之间
            ['name', 'required'],
            ['name', 'string', 'min' => 3, 'max' => 255],
        ];
    }
}

// 创建一个模型实例并传递数据
$model = new ExampleModel();
$model->attributes = [
    'id' => 'abcd',
    'name' => 'jo',
];

// 实施数据校验
if (!$model->validate()) {
    foreach ($model->errors as $key => $errors) {
        echo "$key:";
        foreach ($errors as $error) {
            echo " $error";
        }
        echo "
";
    }
} else {
    echo "数据格式正确
";
}