TP5验证规则自定义

        $rule = [
            "feedback_content" => "ctypeSpace",
        ];
        $msg = [
            "feedback_content.ctypeSpace" => "反馈内容不能为空"
        ];
        $validate = Validate::make($rule, $msg);
        $result = $validate->check($data);
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{
    "code": 4000,
    "data": {},
    "msg": "反馈内容不能为空"
}
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 * @method bool ctypeSpace(mixed $value, mixed $rule) static 验证数据不能都是空格
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    /**
     * 验证数据不能都是空格
     * @access public
     * @param  mixed     $value  字段值
     * @param  mixed     $rule  验证规则
     * @return bool
     */
    public function ctypeSpace($value, $rule)
    {
        return ctype_space($value) ? false : true;
    }
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