


Detailed explanation of get and set method examples of dynamically created properties in PHP
在PHP中,我们不能够直接通过方法名相同,签名不同的方法来实现方法重载,因为PHP是弱数据类型,不能很好的区分签名。但是,可以在PHP的类中运用call()方法来实现方法重载。当调用一个类中并不存在的方法时,会自动调用call()方法,其形式为call($name,$arguments) 其中$name是方法的名称,$arguments是一个数组类型的参数。
下面的例子是使用PHP的方法重载来动态创建get和set方法。(在面向对象编程中,一个类中的属性会使用get和set来赋值,但是如果一个类中有太多的属性,比如30个,那么如果不用方法重载的话,我们就需要写30个set方法,30个get方法,自已一边慢慢写去吧。。。)
代码如下:
<?php class person { private $name; private $age; private $address; private $school; private $phonenum; public function call($method,$args) { $perfix=strtolower(substr($method,0,3)); $property=strtolower(substr($method,3)); if(empty($perfix)||empty($property)) { return; } if($perfix=="get"&&isset($this->$property)) { return $this->$property; } if($perfix=="set") { $this->$property=$args[0]; } } } $p=new person(); $p->setname('lvcy'); $p->setage(23); $p->setAddress(chengdu); $p->setschool('uestc'); $p->setphonenum('123456'); echo $p->getname().'\\n'; echo $p->getage().'\\n'; echo $p->getaddress().'\\n'; echo $p->getschool().'\\n'; ?>
通过Call()方法很容易的解决了这个问题,而不是编写每个属性的get set方法。
The above is the detailed content of Detailed explanation of get and set method examples of dynamically created properties in PHP. For more information, please follow other related articles on the PHP Chinese website!

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

TomakePHPapplicationsfaster,followthesesteps:1)UseOpcodeCachinglikeOPcachetostoreprecompiledscriptbytecode.2)MinimizeDatabaseQueriesbyusingquerycachingandefficientindexing.3)LeveragePHP7 Featuresforbettercodeefficiency.4)ImplementCachingStrategiessuc

ToimprovePHPapplicationspeed,followthesesteps:1)EnableopcodecachingwithAPCutoreducescriptexecutiontime.2)ImplementdatabasequerycachingusingPDOtominimizedatabasehits.3)UseHTTP/2tomultiplexrequestsandreduceconnectionoverhead.4)Limitsessionusagebyclosin

Dependency injection (DI) significantly improves the testability of PHP code by explicitly transitive dependencies. 1) DI decoupling classes and specific implementations make testing and maintenance more flexible. 2) Among the three types, the constructor injects explicit expression dependencies to keep the state consistent. 3) Use DI containers to manage complex dependencies to improve code quality and development efficiency.

DatabasequeryoptimizationinPHPinvolvesseveralstrategiestoenhanceperformance.1)Selectonlynecessarycolumnstoreducedatatransfer.2)Useindexingtospeedupdataretrieval.3)Implementquerycachingtostoreresultsoffrequentqueries.4)Utilizepreparedstatementsforeffi


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

SublimeText3 Linux new version
SublimeText3 Linux latest version

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.

VSCode Windows 64-bit Download
A free and powerful IDE editor launched by Microsoft

PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool

MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.
