业务需要每月新增一张表,以应对大量的数据情况,以下为thinkphp动态创建数据表结构源码
$table = 'activelog'. date('Ym');
$sql = "CREATE TABLE IF NOT EXISTS `$table` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`system` tinyint(4) NOT NULL COMMENT 'xxxxxx',
`pfid` smallint(4) NOT NULL,
`uid` int(11) NOT NULL,
.....
`update_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='活跃统计' AUTO_INCREMENT=1 ;";
M('', '', 'DB_CONFIG_ACTIVE')->execute($sql);//注意,这里创建表的话,第一个参数不要设置,不然会检测表信息,然表不存在,导致报错。
我们来一探究竟:
thinkphp3.2会默认开启数据表字段检测,在Model.class.php
查看源码
// 是否自动检测数据表字段信息
protected $autoCheckFields = true;
在db方法中,1409行, 有这样的代码:
if(!empty($this->name) && $this->autoCheckFields) $this->_checkTableInfo();
$this->name 在构造方法中设置,也就是我们M('','','XXXX') 第一个参数。 参数3为数据库连接信息
今天在写业务逻辑的时候碰到的,顺便写下来,希望能够帮到大家。
您也可以参考我的个人网站: http://www.isbala.com/article/270.html
AD:真正免费,域名+虚机+企业邮箱=0元

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.

SublimeText3 Linux new version
SublimeText3 Linux latest version

Atom editor mac version download
The most popular open source editor

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.

SublimeText3 Mac version
God-level code editing software (SublimeText3)