这里声明一点,上例中不小心把数据库表中lastupd字段错打成lastudp,本例子予以更正。
除上诉字段数据库与上例一致。
工程仍沿用上例,如下图:
代码依次为:
database.php:与上例一致。
companies_controller.php:
-
- class CompaniesController extends AppController
- {
- var $name = 'Companies';
- function index()
- {
- $this->set('companies', $this->Company->findAll());
- }
- function view($id = null)
- {
- $this->Company->id = $id;
- $this->set('company', $this->Company->read());
- }
- function add()
- {
- if (!emptyempty($this->data))
- {
- if ($this->Company->save($this->data))
- {
- $this->flash('Your post has been saved.','/companies');
- }
- }
- }
- function edit($id = null)
- {
- if (emptyempty($this->data))
- {
- $this->Company->id = $id;
- $this->data = $this->Company->read();
- }
- else
- {
- if ($this->Company->save($this->data['Company']))
- {
- $this->flash('Your post has been updated.','/companies');
- }
- }
- }
- function delete($id)
- {
- $this->Company->del($id);
- $this->flash('The post with id: '.$id.' has been deleted.', '/companies');
- }
- }
- ?>
company.php:
-
- class Company extends AppModel
- {
- var $name = 'Company';
- var $validate = array(
- 'company' => VALID_NOT_EMPTY,
- 'price' => VALID_NOT_EMPTY,
- 'change' => VALID_NOT_EMPTY,
- 'lastupd' => VALID_NOT_EMPTY
- );
- }
- ?>
index.thtml:
-
Test companies
-
Id company price change last update - foreach ($companies as $company): ?>
echo $company['Company']['id']; ?> - echo $html->link($company['Company']['company'], "/companies/view/".$company['Company']['id']); ?>
- echo $html->link('Delete', "/companies/delete/{$company['Company']['id']}", null, 'Are you sure?')?>
echo $company['Company']['price']; ?> echo $company['Company']['change']; ?> echo $company['Company']['lastupd']; ?> - endforeach; ?>
- echo $html->link('add', "/companies/add"); ?>
view.thtml:
-
Company: echo $company['Company']['company']?>
-
Id: echo $company['Company']['id']?>
-
Price: echo $company['Company']['price']?>
-
Change: echo $company['Company']['change']?>
-
LastUpdate: echo $company['Company']['lastupd']?>
-
- echo $html->link('edit', "/companies/edit/".$company['Company']['id']); ?>
add.thtml:
-
Add Company
edit.thtml:
-
Edit Company
如此访问http://localhost/cakephp/companies即可测试代码。

tomakephpapplicationsfaster,關注台詞:1)useopcodeCachingLikeLikeLikeLikeLikePachetoStorePreciledScompiledScriptbyTecode.2)MinimimiedAtabaseSqueriSegrieSqueriSegeriSybysequeryCachingandeffeftExting.3)Leveragephp7 leveragephp7 leveragephp7 leveragephpphp7功能forbettercodeefficy.4)

到ImprovephPapplicationspeed,關注台詞:1)啟用opcodeCachingwithapCutoredUcescriptexecutiontime.2)實現databasequerycachingingusingpdotominiminimizedatabasehits.3)usehttp/2tomultiplexrequlexrequestsandreduceconnection.4 limitesclection.4.4

依赖注入(DI)通过显式传递依赖关系,显著提升了PHP代码的可测试性。1)DI解耦类与具体实现,使测试和维护更灵活。2)三种类型中,构造函数注入明确表达依赖,保持状态一致。3)使用DI容器管理复杂依赖,提升代码质量和开发效率。

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

phpisusedforsenderemailsduetoitsbuilt-inmail()函數andsupportivelibrariesLikePhpMailerAndSwiftMailer.1)usethemail()functionForbasiceMails,butithasimails.2)butithasimail.2)

PHP性能瓶颈可以通过以下步骤解决:1)使用Xdebug或Blackfire进行性能分析,找出问题所在;2)优化数据库查询并使用缓存,如APCu;3)使用array_filter等高效函数优化数组操作;4)配置OPcache进行字节码缓存;5)优化前端,如减少HTTP请求和优化图片;6)持续监控和优化性能。通过这些方法,可以显著提升PHP应用的性能。

依賴性注射(DI)InphpisadesignPatternthatManages和ReducesClassDeptions,增強量強制性,可驗證性和MATIALWINABIOS.ItallowSpasspassingDepentenciesLikEdenciesLikedAbaseConnectionStoclasseconnectionStoclasseSasasasasareTers,interitationAseTestingEaseTestingEaseTestingEaseTestingEasingAndScalability。

cachingimprovesphpermenceByStorcyResultSofComputationsorqucrouctationsorquctationsorquickretrieval,reducingServerLoadAndenHancingResponsetimes.feftectivestrategiesinclude:1)opcodecaching,whereStoresCompiledSinmememorytssinmemorytoskipcompliation; 2)datacaching datacachingsingMemccachingmcachingmcachings


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