有两个表
商品数据表 goods:title,商品标题。brand,品牌id
id title brand
1 化妆品欧莱雅65号 1
2 化妆品温碧泉75
3 化妆品雅琳娜45
4 化妆品香奈儿45 2
5 化妆品欧诗漫22
品牌表 brand
id name
1 欧莱雅
2 香奈儿
3 温碧泉
4 雅琳娜
5 欧诗漫
用PHP和sql语句 让 goods表没brand id的号自动获取品牌id,比如商品表id2后面的brand值为3.不知道怎么做了。哪位给个思路。实际上品牌表里面有几百个品牌,商品名肯定包含了一个品牌名。
回复讨论(解决方案)
遍历goods表中的title ,看是否包含brand中的name在里面,有的话,记下id放入一个新数组中作为title的brand值,楼主可以试下
用了个笨办法实现了,只需要功能,不讲究效率了。。
你去研究下orm吧
笨办法就是。先用substr截取3-6位的字符串。取得诸如“欧莱雅”“香奈儿”之类的品牌名称,再去brand表里面查询对应的brand_id。。前提是。你的3-6位字符串恰好是品牌名。
substr($str,9,9); 由于是中文字符串。 如果品牌刚好是第四个中文字符开始。那么截取9个字符、
foreach($brand_name as $key=> $item){
$name = substr($str,9,9);
switch($name){
case '欧莱雅':
//do something;
$brand_name[$key]['brand_id'] = 3;
break;
case 'xxx':
}
}
不知道是不是你要的那种。。。
substr($str,9,9); 由于是中文字符串。 如果品牌刚好是第四个中文字符开始。那么截取9个字符、
foreach($brand_name as $key=> $item){
$name = substr($str,9,9);
switch($name){
case '欧莱雅':
//do something;
$brand_……
其实每个标题没那么规则的 用多重条件 先遍历品牌 然后 遍历没品牌的商品 然后修改为品牌ID
那foreach循环里修改下。 碰到没有id的在查询。
如果商品名称不规则。则用preg_match 正则查询出需要的数据。 逻辑你应该清楚。编码的事相信你可以搞定

Thedifferencebetweenunset()andsession_destroy()isthatunset()clearsspecificsessionvariableswhilekeepingthesessionactive,whereassession_destroy()terminatestheentiresession.1)Useunset()toremovespecificsessionvariableswithoutaffectingthesession'soveralls

Stickysessionsensureuserrequestsareroutedtothesameserverforsessiondataconsistency.1)SessionIdentificationassignsuserstoserversusingcookiesorURLmodifications.2)ConsistentRoutingdirectssubsequentrequeststothesameserver.3)LoadBalancingdistributesnewuser

PHPoffersvarioussessionsavehandlers:1)Files:Default,simplebutmaybottleneckonhigh-trafficsites.2)Memcached:High-performance,idealforspeed-criticalapplications.3)Redis:SimilartoMemcached,withaddedpersistence.4)Databases:Offerscontrol,usefulforintegrati

Session in PHP is a mechanism for saving user data on the server side to maintain state between multiple requests. Specifically, 1) the session is started by the session_start() function, and data is stored and read through the $_SESSION super global array; 2) the session data is stored in the server's temporary files by default, but can be optimized through database or memory storage; 3) the session can be used to realize user login status tracking and shopping cart management functions; 4) Pay attention to the secure transmission and performance optimization of the session to ensure the security and efficiency of the application.

PHPsessionsstartwithsession_start(),whichgeneratesauniqueIDandcreatesaserverfile;theypersistacrossrequestsandcanbemanuallyendedwithsession_destroy().1)Sessionsbeginwhensession_start()iscalled,creatingauniqueIDandserverfile.2)Theycontinueasdataisloade

Absolute session timeout starts at the time of session creation, while an idle session timeout starts at the time of user's no operation. Absolute session timeout is suitable for scenarios where strict control of the session life cycle is required, such as financial applications; idle session timeout is suitable for applications that want users to keep their session active for a long time, such as social media.

The server session failure can be solved through the following steps: 1. Check the server configuration to ensure that the session is set correctly. 2. Verify client cookies, confirm that the browser supports it and send it correctly. 3. Check session storage services, such as Redis, to ensure that they are running normally. 4. Review the application code to ensure the correct session logic. Through these steps, conversation problems can be effectively diagnosed and repaired and user experience can be improved.

session_start()iscrucialinPHPformanagingusersessions.1)Itinitiatesanewsessionifnoneexists,2)resumesanexistingsession,and3)setsasessioncookieforcontinuityacrossrequests,enablingapplicationslikeuserauthenticationandpersonalizedcontent.


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

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

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

VSCode Windows 64-bit Download
A free and powerful IDE editor launched by Microsoft

Zend Studio 13.0.1
Powerful PHP integrated development environment

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.

ZendStudio 13.5.1 Mac
Powerful PHP integrated development environment
