search
HomeBackend DevelopmentPHP TutorialAdd ternary operator to the array output by the template to judge, array operator_PHP tutorial

Add ternary operator to the array output by the template for judgment. Array operator

provides a useful judgment method. Add ternary operation to the array output by the template. It is very convenient to judge by using the talisman. Of course you can also use Ajax~

<span><html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 
    <title>无标题</title>
</head>
<body><span>
我的口号是什么?&mdash;&mdash;</span>><{<span>$data</span>['user']?'没有问题':Wow搞大了}> <br/>    //提醒:三元运算符不能接受符号,不然会报错!
                   <{<span>$data</span>['email']}> <br/>
                   <{<span>$data</span>['address']}><br/>
                   <{<span>$data</span>['num']+10}><br/>
</body>
</html></span>

Controller methods

<span><?php</span><br /><span>namespace Home\Controller;</span><br /><span>use Think\Controller;</span><br /><span> <span>public</span> <span>function</span><span> index(){

      </span><span>$data</span>['user']='我爱的是你爱我'<span>;
      </span><span>$data</span>['email']='integer@gmail.cn'<span>;
      </span><span>$data</span>['address']='中国大陆'<span>;
      </span><span>$data</span>['num']='21'<span>;
      </span><span>//</span><span>$this->assign('num',10);</span>
      <span>$this</span>->assign('data',<span>$data</span><span>);
      </span><span>$this</span>-><span>display();
    }</span></span>

Those three ternary operators in C# are probably conditional. How do they operate?

Ternary operator? :
For example: i= 2 > 3 ? 0 : 1
2 is greater than 3, if so, get i = 0; otherwise i=1.

The ternary operator in C# is () A== B?: C!= D

Choose B
Ternary operator?:;, which is a relational operator.
is often used for relational comparison, mainly for There are only two states of the comparison relationship (greater than and not greater than, true and false)
First find the value of expression 1, if it is true, then execute expression 2 and return the result of expression 2; if the expression If the value of Formula 1 is false, then Expression 3 will be executed and the result of Expression 3 will be returned
. For example, the following expression:
a>0? a++: (a = 1)
When a>0 is When true, a++ is executed, and the value of the entire expression is equal to the value of expression a++.
When a>0 is false, a=1 is executed, and the value of the entire expression is equal to the value of expression a=1.
Reference: zhidao.baidu.com/question/341063017.html

www.bkjia.comtruehttp: //www.bkjia.com/PHPjc/860924.htmlTechArticleThe ternary operator is added to the array output by the template for judgment. The array operator provides a useful judgment method. , it is very convenient to add the ternary operator to the array output by the template to judge. ...
Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Explain how load balancing affects session management and how to address it.Explain how load balancing affects session management and how to address it.Apr 29, 2025 am 12:42 AM

Load balancing affects session management, but can be resolved with session replication, session stickiness, and centralized session storage. 1. Session Replication Copy session data between servers. 2. Session stickiness directs user requests to the same server. 3. Centralized session storage uses independent servers such as Redis to store session data to ensure data sharing.

Explain the concept of session locking.Explain the concept of session locking.Apr 29, 2025 am 12:39 AM

Sessionlockingisatechniqueusedtoensureauser'ssessionremainsexclusivetooneuseratatime.Itiscrucialforpreventingdatacorruptionandsecuritybreachesinmulti-userapplications.Sessionlockingisimplementedusingserver-sidelockingmechanisms,suchasReentrantLockinJ

Are there any alternatives to PHP sessions?Are there any alternatives to PHP sessions?Apr 29, 2025 am 12:36 AM

Alternatives to PHP sessions include Cookies, Token-based Authentication, Database-based Sessions, and Redis/Memcached. 1.Cookies manage sessions by storing data on the client, which is simple but low in security. 2.Token-based Authentication uses tokens to verify users, which is highly secure but requires additional logic. 3.Database-basedSessions stores data in the database, which has good scalability but may affect performance. 4. Redis/Memcached uses distributed cache to improve performance and scalability, but requires additional matching

Define the term 'session hijacking' in the context of PHP.Define the term 'session hijacking' in the context of PHP.Apr 29, 2025 am 12:33 AM

Sessionhijacking refers to an attacker impersonating a user by obtaining the user's sessionID. Prevention methods include: 1) encrypting communication using HTTPS; 2) verifying the source of the sessionID; 3) using a secure sessionID generation algorithm; 4) regularly updating the sessionID.

What is the full form of PHP?What is the full form of PHP?Apr 28, 2025 pm 04:58 PM

The article discusses PHP, detailing its full form, main uses in web development, comparison with Python and Java, and its ease of learning for beginners.

How does PHP handle form data?How does PHP handle form data?Apr 28, 2025 pm 04:57 PM

PHP handles form data using $\_POST and $\_GET superglobals, with security ensured through validation, sanitization, and secure database interactions.

What is the difference between PHP and ASP.NET?What is the difference between PHP and ASP.NET?Apr 28, 2025 pm 04:56 PM

The article compares PHP and ASP.NET, focusing on their suitability for large-scale web applications, performance differences, and security features. Both are viable for large projects, but PHP is open-source and platform-independent, while ASP.NET,

Is PHP a case-sensitive language?Is PHP a case-sensitive language?Apr 28, 2025 pm 04:55 PM

PHP's case sensitivity varies: functions are insensitive, while variables and classes are sensitive. Best practices include consistent naming and using case-insensitive functions for comparisons.

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

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

Hot Tools

VSCode Windows 64-bit Download

VSCode Windows 64-bit Download

A free and powerful IDE editor launched by Microsoft

SublimeText3 English version

SublimeText3 English version

Recommended: Win version, supports code prompts!

DVWA

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

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

SecLists

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.