search
Homephp教程php手册ThinkPHP CURD方法之table方法详解

ThinkPHP CURD方法的table方法主要用于指定操作的数据表。这篇文章主要介绍了table方法用法,需要的朋友可以参考下

ThinkPHP CURD方法的table方法也属于模型类的连贯操作方法之一,该方法主要用于指定操作的数据表。

具体用法如下:

一般情况下,操作模型的时候系统能够自动识别当前对应的数据表,,所以,使用table方法的情况通常是为了:

1.切换操作的数据表;
2.对多表进行操作;

例如:

$Model->table('think_user')->where('status>1')->select();

也可以在table方法中指定数据库,例如:

$Model->table('db_name.think_user')->where('status>1')->select();

需要注意的是table方法不会改变数据库的连接,所以你要确保当前连接的用户有权限操作相应的数据库和数据表。

切换数据表后,系统会自动重新获取切换后的数据表的字段缓存信息。

如果需要对多表进行操作,可以这样使用:

$Model->field('user.name,role.title')->table('think_user user,think_role role')->limit(10)->select();

为了尽量避免和mysql的关键字冲突,可以建议使用数组方式定义,例如:

$Model->field('user.name,role.title')->table(array('think_user'=>'user','think_role'=>'role'))->limit(10)->select();

Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

MantisBT

MantisBT

Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

SublimeText3 Linux new version

SublimeText3 Linux new version

SublimeText3 Linux latest version

VSCode Windows 64-bit Download

VSCode Windows 64-bit Download

A free and powerful IDE editor launched by Microsoft

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

MinGW - Minimalist GNU for Windows

MinGW - Minimalist GNU for Windows

This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.