thinkphp验证器

thinkphp 验证器一般是验证表单，验证通过就执行操作，不通过就通过json返回错误信息。比一个个验证正则很方便

use thinkValidate;     //先导验证器类
 　　 $data = $_POST;
       //清除首尾空格

       foreach ($data as $key => $value) {
           $data[$key] = trim($value);
       }

       //验证表单
        $validate = new Validate([
            'name'=>'require|min:2|max:100',
            'title'=>'require|min:2|max:100',
            'old_price' =>'require|number',
            'price'=>'require|number',
            'stock'=>'require|number',
            'warnstock'=>'require|number|<=:stock',  //预警库存小于库存
            'status'=>'require|in:0,1',
            'brand_id'=>'require|number',
            'goodstype_id'=>'require|number',
            'detail'=>'require',
        ]);
        if (!$validate->check($data)) {
            $this->error($validate->getError());
        }