咨询关于Paypal支付的开发方法
在网上找些资料,没太看明白。
用https://www.sandbox.paypal.com测试,如下形式发送请求,假如"abc_123456789_biz@163.com"是我的商家测试邮箱,"def_123456789_per@163.com"是我的个人测试邮箱,通过交易,可以从"def_123456789_per@163.com"减去1元,而"abc_123456789_biz@163.com"并没有增加1元。接下来要做什么呢?
我可以在https://www.sandbox.paypal.com的自动回复URL设置自己的网页地址,并接到一些值,如“Completed”等等,怎么用那些呢?
对于用户已经通过Paypal付款,第一时间得知并验证真伪等,正确的开发方法是什么呢?
也看到Paypal提供给开发者的SDK,怎么用呢?原理不太清楚。
- PHP code
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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.

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

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.

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

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


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