做搜索查询的时候 怎么拆分词?
比如说
商品标题
字段title
秋冬新款大码女装宽松毛衣外套女开衫加厚中长款羊毛
商品评论
字段content
秋冬季室内穿着舒适,出外搭配棉羽背心也时尚应景。A字型裙摆式款型,可以遮挡腰腹赘肉。肩部承重力在织造设计方面值得升级改进。袖笼围度窄瘦,袖长偏短,用料与正身之阔绰相比,显寒碜。由此内里只能搭配无袖或薄型衬衫。本人159cm,135g,103cm胸围,39cm肩宽,35cm臂围,供参考。十分担心缩水率,唯恐宝贝是“一水衣”。
搜索 大码 羊毛 外套
搜索 大码 羊毛 舒适 款型
这样怎么实现呢 应该是什么样思路呢 我开始想的是取出关键词 一个词一个词的'%'.$wd.'%'?那样也实现不了 几个词同时出现的时候
------解决思路----------------------
MySQL 提供了正则表达式检索,为何不用一下呢?
$word = '大码 羊毛 外套';<br />$word = preg_replace('/\s+/', '<br><font color='#FF8000'>------解决思路----------------------</font><br>' ,trim($word));<br />$sql = "select * from tbl_name where concat(title,content) REGEXP '$word'";<br />
如果条件允许的话,使用第三方的全文检索驱动,效率要高很多

PHPsessionscanstorestrings,numbers,arrays,andobjects.1.Strings:textdatalikeusernames.2.Numbers:integersorfloatsforcounters.3.Arrays:listslikeshoppingcarts.4.Objects:complexstructuresthatareserialized.

TostartaPHPsession,usesession_start()atthescript'sbeginning.1)Placeitbeforeanyoutputtosetthesessioncookie.2)Usesessionsforuserdatalikeloginstatusorshoppingcarts.3)RegeneratesessionIDstopreventfixationattacks.4)Considerusingadatabaseforsessionstoragei

Session regeneration refers to generating a new session ID and invalidating the old ID when the user performs sensitive operations in case of session fixed attacks. The implementation steps include: 1. Detect sensitive operations, 2. Generate new session ID, 3. Destroy old session ID, 4. Update user-side session information.

PHP sessions have a significant impact on application performance. Optimization methods include: 1. Use a database to store session data to improve response speed; 2. Reduce the use of session data and only store necessary information; 3. Use a non-blocking session processor to improve concurrency capabilities; 4. Adjust the session expiration time to balance user experience and server burden; 5. Use persistent sessions to reduce the number of data read and write times.

PHPsessionsareserver-side,whilecookiesareclient-side.1)Sessionsstoredataontheserver,aremoresecure,andhandlelargerdata.2)Cookiesstoredataontheclient,arelesssecure,andlimitedinsize.Usesessionsforsensitivedataandcookiesfornon-sensitive,client-sidedata.

PHPidentifiesauser'ssessionusingsessioncookiesandsessionIDs.1)Whensession_start()iscalled,PHPgeneratesauniquesessionIDstoredinacookienamedPHPSESSIDontheuser'sbrowser.2)ThisIDallowsPHPtoretrievesessiondatafromtheserver.

The security of PHP sessions can be achieved through the following measures: 1. Use session_regenerate_id() to regenerate the session ID when the user logs in or is an important operation. 2. Encrypt the transmission session ID through the HTTPS protocol. 3. Use session_save_path() to specify the secure directory to store session data and set permissions correctly.

PHPsessionfilesarestoredinthedirectoryspecifiedbysession.save_path,typically/tmponUnix-likesystemsorC:\Windows\TemponWindows.Tocustomizethis:1)Usesession_save_path()tosetacustomdirectory,ensuringit'swritable;2)Verifythecustomdirectoryexistsandiswrita


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