search
HomeBackend DevelopmentPHP Tutorial关于给用户发送邮件的一些问题

现在要给全部用户或者指定用户发送邮件,“发送”操作是由我们后台人员触发的。

发送操作提交后,我们就要给用户发送了,在发送过程中可能会存在一个问题,就是发送了一段时间后,程序因某些原因死掉了,这样就导致一些用户没有收到邮件,所以我的想法是发送前先把数据库里的用户全写入到一个文件中,发送时从文件中取用户,然后再弄个用户发送日志以记录哪些用户发送了,这样出问题后,可以从出问题的“那个地方”接着执行发送.....

不知道我的想法行不行,另外我担心“把数据库中的用户写入到文件中”这个过程所花费的时间会很长,从而导致性能上会存在隐患。谢谢大家讨论我的想法,给些意见或指点!

回复内容:

现在要给全部用户或者指定用户发送邮件,“发送”操作是由我们后台人员触发的。

发送操作提交后,我们就要给用户发送了,在发送过程中可能会存在一个问题,就是发送了一段时间后,程序因某些原因死掉了,这样就导致一些用户没有收到邮件,所以我的想法是发送前先把数据库里的用户全写入到一个文件中,发送时从文件中取用户,然后再弄个用户发送日志以记录哪些用户发送了,这样出问题后,可以从出问题的“那个地方”接着执行发送.....

不知道我的想法行不行,另外我担心“把数据库中的用户写入到文件中”这个过程所花费的时间会很长,从而导致性能上会存在隐患。谢谢大家讨论我的想法,给些意见或指点!

和@舞林 同学的想法有点相似:

  • 把待发的邮件,存储到列表(Lists)中,通过lpush插入到Redis消息队列中
  • 负责发送邮件的代码中通过BRPOP依次消息队列中的内容并进行处理,如果没有新邮件则会阻塞等待直到有新的消息

这样的话不管程序死掉或者什么原因都不会千万消息丢失,同时也可以不用另外加一个定时任务


相比于写文件或者是其它的方法,Redis是目前最合适的

Redis是一个开源、支持网络、基于内存、键值对存储数据库

参考:http://zh.wikipedia.org/zh/Redis

我的做法是邮件队列,放redis,crontab每分钟发送,脚本起来的时候发现上个脚本还在跑就退出,为了避免异常,脚本最多执行110秒。做好失败的监控,没啥问题。

还有什么呢,继续吧...

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
PHP Performance Tuning for High Traffic WebsitesPHP Performance Tuning for High Traffic WebsitesMay 14, 2025 am 12:13 AM

ThesecrettokeepingaPHP-poweredwebsiterunningsmoothlyunderheavyloadinvolvesseveralkeystrategies:1)ImplementopcodecachingwithOPcachetoreducescriptexecutiontime,2)UsedatabasequerycachingwithRedistolessendatabaseload,3)LeverageCDNslikeCloudflareforservin

Dependency Injection in PHP: Code Examples for BeginnersDependency Injection in PHP: Code Examples for BeginnersMay 14, 2025 am 12:08 AM

You should care about DependencyInjection(DI) because it makes your code clearer and easier to maintain. 1) DI makes it more modular by decoupling classes, 2) improves the convenience of testing and code flexibility, 3) Use DI containers to manage complex dependencies, but pay attention to performance impact and circular dependencies, 4) The best practice is to rely on abstract interfaces to achieve loose coupling.

PHP Performance: is it possible to optimize the application?PHP Performance: is it possible to optimize the application?May 14, 2025 am 12:04 AM

Yes,optimizingaPHPapplicationispossibleandessential.1)ImplementcachingusingAPCutoreducedatabaseload.2)Optimizedatabaseswithindexing,efficientqueries,andconnectionpooling.3)Enhancecodewithbuilt-infunctions,avoidingglobalvariables,andusingopcodecaching

PHP Performance Optimization: The Ultimate GuidePHP Performance Optimization: The Ultimate GuideMay 14, 2025 am 12:02 AM

ThekeystrategiestosignificantlyboostPHPapplicationperformanceare:1)UseopcodecachinglikeOPcachetoreduceexecutiontime,2)Optimizedatabaseinteractionswithpreparedstatementsandproperindexing,3)ConfigurewebserverslikeNginxwithPHP-FPMforbetterperformance,4)

PHP Dependency Injection Container: A Quick StartPHP Dependency Injection Container: A Quick StartMay 13, 2025 am 12:11 AM

APHPDependencyInjectionContainerisatoolthatmanagesclassdependencies,enhancingcodemodularity,testability,andmaintainability.Itactsasacentralhubforcreatingandinjectingdependencies,thusreducingtightcouplingandeasingunittesting.

Dependency Injection vs. Service Locator in PHPDependency Injection vs. Service Locator in PHPMay 13, 2025 am 12:10 AM

Select DependencyInjection (DI) for large applications, ServiceLocator is suitable for small projects or prototypes. 1) DI improves the testability and modularity of the code through constructor injection. 2) ServiceLocator obtains services through center registration, which is convenient but may lead to an increase in code coupling.

PHP performance optimization strategies.PHP performance optimization strategies.May 13, 2025 am 12:06 AM

PHPapplicationscanbeoptimizedforspeedandefficiencyby:1)enablingopcacheinphp.ini,2)usingpreparedstatementswithPDOfordatabasequeries,3)replacingloopswitharray_filterandarray_mapfordataprocessing,4)configuringNginxasareverseproxy,5)implementingcachingwi

PHP Email Validation: Ensuring Emails Are Sent CorrectlyPHP Email Validation: Ensuring Emails Are Sent CorrectlyMay 13, 2025 am 12:06 AM

PHPemailvalidationinvolvesthreesteps:1)Formatvalidationusingregularexpressionstochecktheemailformat;2)DNSvalidationtoensurethedomainhasavalidMXrecord;3)SMTPvalidation,themostthoroughmethod,whichchecksifthemailboxexistsbyconnectingtotheSMTPserver.Impl

See all articles

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 Article

Hot Tools

Safe Exam Browser

Safe Exam Browser

Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.

ZendStudio 13.5.1 Mac

ZendStudio 13.5.1 Mac

Powerful PHP integrated development environment

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

DVWA

DVWA

Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software