Controller 代码:
<code>public function show(Request $request,$id){ $person = DB::table('persons')->where('id',$id)->get(); return view('showuser',compact('person')); } </code>
我在 view/showuser.blade.php 怎么写才能显示出 person 这个对象的值?
必须这么写才行 {{ $person[0]->id }} ???
感觉这样显示的值是个数组啊。 不是对象啊。
view()->withXXX
view('xxx,compact('xxx'))
这些传递到 view 的数据 都应该怎么显示???
这些数据都是什么形式?
希望熟悉 laravel 的 指点下~
回复内容:
Controller 代码:
<code>public function show(Request $request,$id){ $person = DB::table('persons')->where('id',$id)->get(); return view('showuser',compact('person')); } </code>
我在 view/showuser.blade.php 怎么写才能显示出 person 这个对象的值?
必须这么写才行 {{ $person[0]->id }} ???
感觉这样显示的值是个数组啊。 不是对象啊。
view()->withXXX
view('xxx,compact('xxx'))
这些传递到 view 的数据 都应该怎么显示???
这些数据都是什么形式?
希望熟悉 laravel 的 指点下~
<code>$person = DB::table('persons')->where('id',$id)->get(); </code>
这句其实是从 Builder 对象中取回一个 Collection 对象,而该 Collection 对象中包含了 Person 对象。Collection 实现了数组相关的接口,所以也可以使用访问数组的方式获取 Person 对象。
如果想通过 id 直接获取 Person 对象,可以使用 find 方法:
<code>$person = DB::table('person')->find($id); </code>
Blade 中可以使用 @for、@foreach 或 @forelse 等遍历对象集合,再显示对象的属性值:
<code>@forelse($persons as $person) <li> {{ $person->name }} </li> @empty <span>Nothing.</span> @endforelse </code>
对于单个对象自然直接访问即可:
<code>Hello, {{ $person->name }} !</code>
楼主既然写了获取某个ID的用户,那根本用不到 foreach
了吧。只获取一个用户的可以直接用 first()
方法:
<code>$person = DB::table('persons')->where('id',$id)->first(); // Or $person = DB::table('persons')->where('id',$id)->firstOrFail();</code>
这样的话在 view 中可以直接 $person->name
来显示,而不用 $person[0]->name
了。
你需要@foreach
楼上正解
<code>@foreache($person as $temp) {$temp->foo} @endforeach </code>
你查询出来的数据形式可以试着
<code>dd(); </code>
laravel中传递的数据一般都为JSON数组形式
同在学习laravel,如有错误的地方欢迎指出

TooptimizePHPcodeforreducedmemoryusageandexecutiontime,followthesesteps:1)Usereferencesinsteadofcopyinglargedatastructurestoreducememoryconsumption.2)LeveragePHP'sbuilt-infunctionslikearray_mapforfasterexecution.3)Implementcachingmechanisms,suchasAPC

PHPisusedforsendingemailsduetoitsintegrationwithservermailservicesandexternalSMTPproviders,automatingnotificationsandmarketingcampaigns.1)SetupyourPHPenvironmentwithawebserverandPHP,ensuringthemailfunctionisenabled.2)UseabasicscriptwithPHP'smailfunct

The best way to send emails is to use the PHPMailer library. 1) Using the mail() function is simple but unreliable, which may cause emails to enter spam or cannot be delivered. 2) PHPMailer provides better control and reliability, and supports HTML mail, attachments and SMTP authentication. 3) Make sure SMTP settings are configured correctly and encryption (such as STARTTLS or SSL/TLS) is used to enhance security. 4) For large amounts of emails, consider using a mail queue system to optimize performance.

CustomheadersandadvancedfeaturesinPHPemailenhancefunctionalityandreliability.1)Customheadersaddmetadatafortrackingandcategorization.2)HTMLemailsallowformattingandinteractivity.3)AttachmentscanbesentusinglibrarieslikePHPMailer.4)SMTPauthenticationimpr

Sending mail using PHP and SMTP can be achieved through the PHPMailer library. 1) Install and configure PHPMailer, 2) Set SMTP server details, 3) Define the email content, 4) Send emails and handle errors. Use this method to ensure the reliability and security of emails.

ThebestapproachforsendingemailsinPHPisusingthePHPMailerlibraryduetoitsreliability,featurerichness,andeaseofuse.PHPMailersupportsSMTP,providesdetailederrorhandling,allowssendingHTMLandplaintextemails,supportsattachments,andenhancessecurity.Foroptimalu

The reason for using Dependency Injection (DI) is that it promotes loose coupling, testability, and maintainability of the code. 1) Use constructor to inject dependencies, 2) Avoid using service locators, 3) Use dependency injection containers to manage dependencies, 4) Improve testability through injecting dependencies, 5) Avoid over-injection dependencies, 6) Consider the impact of DI on performance.

PHPperformancetuningiscrucialbecauseitenhancesspeedandefficiency,whicharevitalforwebapplications.1)CachingwithAPCureducesdatabaseloadandimprovesresponsetimes.2)Optimizingdatabasequeriesbyselectingnecessarycolumnsandusingindexingspeedsupdataretrieval.


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

mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),

Zend Studio 13.0.1
Powerful PHP integrated development environment

SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.

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.

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
