Call to a member function num_rows() on boolean in ...
最近使用ci框架 ，用的php版本也比较老了然后就各种报错，特此记录一下
报错前写法：
if ($oResult->num_rows() > 0) return $oResult->result_array();
更改后写法
if ( $oResult !== false && $oResult->num_rows() > 0) return $oResult->result_array();参考链接 https://forum.codeigniter.com/thread-64503.html
Call to a member function num_rows() on boolean in ...相关推荐
- call to member function bind_param() on boolean...........
Fatal error: Uncaught Error: Call to a member function bind_param() on boolean in .... Stack trace: ...
- [C++]Call virtual member function in constructor or destructor
嗷嗷按,今天被问到在constructor/destructor中调用virtual member function的问题.答错了,很羞耻. 依稀记得在constructor/destructor调用 ...
- error: reference to non-static member function must be called sort(nums.begin(),nums.end(),cmp1)
leetcode179题中编译出现则个问题 出错的代码: class Solution { public:bool cmp1(const int& a, const int& b){s ...
- 提示illegal reference to data member'CPMAgentManageDlg::m_matrixMatrixSt'in a static member function
当提示"illegal reference to data member'CPMAgentManageDlg::m_matrixMatrixSt'in a static member fun ...
- 出现错误illegal call of non-static member function?
当出现错误"illegal call of non-static member function"? 解决方法:原因在于没有经过对象,就调用了非静态成员函数,只有静态成员函数(st ...
- c++ 静态类成员函数(static member function) vs 名字空间 (namespace)
好多人喜欢把工具函数做成static member function.这样以增加隐蔽性和封装性,由其是从C#,java转而使用c++的开发人员. 例如: class my_math { public: ...
- NOTE: a missing vtable usually means the first non-inline virtual member function has no definition.
NOTE: a missing vtable usually means the first non-inline virtual member function has no definition. ...
- warning C4183: ‘Cricle‘: member function definition looks like a ctor, but name does not match enclo
报错:warning C4183: 'Cricle': member function definition looks like a ctor, but name does not match en ...
- C/C++编程：reference to non-static member function must be called
主要原因是我使用了函数指针,而函数指针所指函数须得是静态才行 错误代码: class Solution {public:string ReverseSentence(string str) {type ...
最新文章
- MongoDB(3)--有关NoSQL及MongoDB的一些概念
- centos sqldeveloper 连接mysql,Oracle SQL Developer 连接 Mysql 等数据库
- 谷歌为什登不上去github_我们分析了GitHub上5.46 亿条日志，发现中国开源虽然贡献大但还有这些不足......
- 【深度学习】Tensorflow2.x入门（一）建立模型的三种模式
- 简单PHP留言板之四 —— 添加留言
- Pycharm最舒服的主题风格
- Linux使用Jstack查看Java堆栈快照脚本
- STM32F0免费版keil下载激活方式
- mysql 三角函数_三角函数公式
- 什么叫服务器加密狗信息异常,加密狗不能识别，只是服务器能用，客户端提示到期，是什么原因，已经换了口，也重启过电脑了。...
- 挥手2015，笑迎2016
- HTML在线编辑器原理
- 第二类斯特林数 - Push Botton Lock（POJ 3088）
- java web服务_如何用Java实现Web服务器
- 微信小店怎么设置优惠券
- hashmap 存取原理图_HashMap的存储原理
- 神经网络训练电脑配置,cpu可以训练神经网络吗
- Unity制作随机数字抽奖小案例
- TexturePacker导入unity后图片还是显示成整图
- autodesk系列产品无法安装解决方案