现在的php是编译型还是解释型????
早前用过php,那时php和asp一样,是解释型的,后来看书上说php4以后做了大的修改,引入了zend引擎,采用的是“先编译后执行”,先编译成中间码,再由zend引擎执行,这和.net,java不就类似了吗?是这样的吗?
现在的php是编译型还是解释型????
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编译还是解释,
可以想想
编译部件和执行部件是否是分离的?
是否产生编译后的中间代码?
在这些角度比较一下, 你应该就得到结论了.
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还是解释型的吧。zend只是一个框架
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解释型的...不需要讨论的了.
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PHP有MEMCACHE或者APC 或者 EACCELERATOR这种 CACHE的东西
用了以后快不少的,和编译型的也差不多了
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生产环境跑PHP的没有不用我说的这种cache的吧??
如果你开发调试PHP最好别装,因为在改权限但是不改动PHP源代码的时候会出问题,看不到权限改动的变化
至少LINUX下是这样的,WIN不知道了
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那個只是他們框架的特點.
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正解請樓主自己判斷
我認為是解釋形的,因為我沒看到有編譯文件

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.

Setting the httponly flag is crucial for session cookies because it can effectively prevent XSS attacks and protect user session information. Specifically, 1) the httponly flag prevents JavaScript from accessing cookies, 2) the flag can be set through setcookies and make_response in PHP and Flask, 3) Although it cannot be prevented from all attacks, it should be part of the overall security policy.

PHPsessionssolvetheproblemofmaintainingstateacrossmultipleHTTPrequestsbystoringdataontheserverandassociatingitwithauniquesessionID.1)Theystoredataserver-side,typicallyinfilesordatabases,anduseasessionIDstoredinacookietoretrievedata.2)Sessionsenhances

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.


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