It is terrible and shameful to have loopholes and do nothing!
Security issue:
Do you have permission to perform CURD? Because the parameters are in the address bar and can be modified (or the parameters are in the html page, you can use firebug to modify the source code), so before performing CURD, you must first check whether the operator Own this record, for example: query whether this record belongs to this operator based on the store ID and passed parameters. If it does not, it will prompt (illegal operation, has been recorded!, to achieve the purpose of warning)
For example:
<span>/*</span><span> * 校验是否有权限进行CURD </span><span>*/</span><span>public</span><span>function</span> check_rbac(<span>$theme_id</span><span>){ </span><span>$model</span>=<span>M(); </span><span>$adm_session</span> = es_session::get(<span>md5</span>(conf("BI_AUTH_KEY")), 1<span>); </span><span>$location_id</span>=<span>$adm_session</span>['supplier_locations'<span>]; </span><span>$map</span>=<span>array</span>('id'=><span>$theme_id</span>,'location_id'=><span>$location_id</span><span>); </span><span>$result</span>=<span>$model</span>->where(<span>$map</span>)->getField('id'<span>); </span><span>if</span>(<span>empty</span>(<span>$result</span><span>)){ </span><span>$this</span>->error('非法操作,已被记录!'<span>); } }</span>
The above has introduced that it is terrible and shameful to have loopholes and do nothing! , including relevant content, I hope it will be helpful to friends who are interested in PHP tutorials.

DependencyinjectioninPHPisadesignpatternthatenhancesflexibility,testability,andmaintainabilitybyprovidingexternaldependenciestoclasses.Itallowsforloosecoupling,easiertestingthroughmocking,andmodulardesign,butrequirescarefulstructuringtoavoidover-inje

PHP performance optimization can be achieved through the following steps: 1) use require_once or include_once on the top of the script to reduce the number of file loads; 2) use preprocessing statements and batch processing to reduce the number of database queries; 3) configure OPcache for opcode cache; 4) enable and configure PHP-FPM optimization process management; 5) use CDN to distribute static resources; 6) use Xdebug or Blackfire for code performance analysis; 7) select efficient data structures such as arrays; 8) write modular code for optimization execution.

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Dependency injection provides object dependencies through external injection in PHP, improving the maintainability and flexibility of the code. Its implementation methods include: 1. Constructor injection, 2. Set value injection, 3. Interface injection. Using dependency injection can decouple, improve testability and flexibility, but attention should be paid to the possibility of increasing complexity and performance overhead.

Implementing dependency injection (DI) in PHP can be done by manual injection or using DI containers. 1) Manual injection passes dependencies through constructors, such as the UserService class injecting Logger. 2) Use DI containers to automatically manage dependencies, such as the Container class to manage Logger and UserService. Implementing DI can improve code flexibility and testability, but you need to pay attention to traps such as overinjection and service locator anti-mode.

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


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