Home Backend Development PHP Tutorial 10 recommended articles about elseif

10 recommended articles about elseif

Jun 13, 2017 am 10:52 AM

I explained to you a multiple-selection elseif statement earlier. Although this statement can make multiple judgments, when used, it requires writing a lot of if statements, which brings inconvenience to the readability of our program. In order to avoid If there are too many if statements and to improve the readability of our program, we can use switch multiple judgment statements. In this chapter we will introduce the "switch statement" to you. Syntax of switch statement: switch (expr) { case expr1: statement;                  break; case expr2: &

1. 10 recommended articles about the usage of PHP conditional control statement examples

10 recommended articles about elseif

##Introduction: I explained to you a multiple-selection elseif statement earlier. Although this statement can be used for multiple judgments, when used, a lot of if statements need to be written to make our program more readable. In order to avoid too many if statements and improve the readability of our program, we can use switch multiple judgment statements. In this chapter, we will introduce the "switch statement" to you. The syntax of the switch statement: switch (expr){    case ...

2. Summary of code examples of elseif statements based on php

10 recommended articles about elseif

Introduction: I explained to you a multiple selection elseif statement earlier, although this statement can be Multiple judgments, but when used, we need to write a lot of if statements, which brings inconvenience to the readability of our program. In order to avoid too many if statements and improve the readability of our program, we can use switch multiple judgment statements. This chapter We will introduce to you the "switch statement". The syntax of the switch statement: switch (expr){    case ...

3. 10 recommended articles about elseif statements

10 recommended articles about elseif

Introduction: I explained to you a multiple selection elseif statement earlier, although this statement can be used for multiple selections. This kind of judgment, but when using it, we need to write a lot of if statements, which brings inconvenience to the readability of our program. In order to avoid too many if statements and improve the readability of our program, we can use switch multiple judgment statements. In this chapter we Let me introduce to you the "switch statement". The syntax of the switch statement: switch (expr){    case ...

4. 10 recommended articles about switch

10 recommended articles about elseif

Introduction: I explained to you a multiple selection elseif statement earlier, although this statement can be used in multiple ways. Judgment, but when using it, you need to write a lot of if statements, which brings inconvenience to the readability of our program. In order to avoid too many if statements and improve the readability of our program, you can use switch multiple judgment statements. In this chapter we will Let me introduce to you the "switch statement". The syntax of the switch statement: switch (expr){    case ...

5. 10 recommended articles about if conditional statements

10 recommended articles about elseif

Introduction: I explained to you a multiple selection elseif statement earlier, although this statement can be Multiple judgments, but when used, we need to write a lot of if statements, which brings inconvenience to the readability of our program. In order to avoid too many if statements and improve the readability of our program, we can use switch multiple judgment statements. This chapter We will introduce to you the "switch statement". The syntax of the switch statement: switch (expr){    case ...

6. PHP控制语句之“switch”语句实例详解

10 recommended articles about elseif

简介:前面给大家讲解了一种多重选择elseif语句,虽然这种语句可以进行多种判断,但是使用的时候,需要写很多的if语句,给我们程序的可读性带来不便,为了避免if语句过多和提高我们程序的可读性,可以使用switch多重判断语句,本章我们就给大家介绍“switch语句”。

7. PHP条件控制语句之“elseif语句”实例详解

10 recommended articles about elseif

简介:之前我们学习了“if...else语句”,知道了我们的“if...else语句” 只能选择两种结果,不是真,就是假。但是当我们出现多个条件的时候,该怎么办呢?什么叫出现多个多件?举个例子来说明一下,假如,有一个班级考试,考试的成绩出来之后,老师划分:90分以上的,是成绩优秀;60-90分之间的,成绩良好,少于60分的,则是成绩不及格。在这种多个条件下,就需要用我们的“elseif语句”了。

8. PHP如何从页面向数据库插入信息的示例代码详解

10 recommended articles about elseif

简介:PHP页面//初始化act$_REQUEST['act']=$_REQUEST['act']?$_REQUEST['act']:'';if($_REQUEST['act']=='add'){ include 'templates/zhiliang_add.php'; }elseif($_REQUEST['act']=='insert'){       //文件上传

9. PHP 条件判断语句和三元运算符

10 recommended articles about elseif

简介:<?php   $n1=1000;   $n2=1000;   $n3=100;   $n4=100;   // if 语句 - 如果指定条件为真,则执行代码   // if...else 语句 - 如果条件为 true,则执行代码;如果条件为 false,则执行另一端代码   // if...elseif....else 语句 - 选择若干段代码块之一来执行   // switch 语句  ...

10. 一个取得客户端IP的函数

10 recommended articles about elseif

简介:<?phpfunctiontep_get_ip_address(){if(isset($_SERVER)){if(isset($_SERVER['HTTP_X_FORWARDED_FOR'])){$ip=$_SERVER['HTTP_X_FORWARDED_FOR'];}elseif

【相关问答推荐】:

PHP模板过多IF elseif 判断 如何解决

php - if ...elseif...else...这样写错了吗,为什么不执行呢?

The above is the detailed content of 10 recommended articles about elseif. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
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

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

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Hot Topics

Java Tutorial
1660
14
PHP Tutorial
1259
29
C# Tutorial
1233
24
How does session hijacking work and how can you mitigate it in PHP? How does session hijacking work and how can you mitigate it in PHP? Apr 06, 2025 am 12:02 AM

Session hijacking can be achieved through the following steps: 1. Obtain the session ID, 2. Use the session ID, 3. Keep the session active. The methods to prevent session hijacking in PHP include: 1. Use the session_regenerate_id() function to regenerate the session ID, 2. Store session data through the database, 3. Ensure that all session data is transmitted through HTTPS.

Explain different error types in PHP (Notice, Warning, Fatal Error, Parse Error). Explain different error types in PHP (Notice, Warning, Fatal Error, Parse Error). Apr 08, 2025 am 12:03 AM

There are four main error types in PHP: 1.Notice: the slightest, will not interrupt the program, such as accessing undefined variables; 2. Warning: serious than Notice, will not terminate the program, such as containing no files; 3. FatalError: the most serious, will terminate the program, such as calling no function; 4. ParseError: syntax error, will prevent the program from being executed, such as forgetting to add the end tag.

PHP and Python: Comparing Two Popular Programming Languages PHP and Python: Comparing Two Popular Programming Languages Apr 14, 2025 am 12:13 AM

PHP and Python each have their own advantages, and choose according to project requirements. 1.PHP is suitable for web development, especially for rapid development and maintenance of websites. 2. Python is suitable for data science, machine learning and artificial intelligence, with concise syntax and suitable for beginners.

What are HTTP request methods (GET, POST, PUT, DELETE, etc.) and when should each be used? What are HTTP request methods (GET, POST, PUT, DELETE, etc.) and when should each be used? Apr 09, 2025 am 12:09 AM

HTTP request methods include GET, POST, PUT and DELETE, which are used to obtain, submit, update and delete resources respectively. 1. The GET method is used to obtain resources and is suitable for read operations. 2. The POST method is used to submit data and is often used to create new resources. 3. The PUT method is used to update resources and is suitable for complete updates. 4. The DELETE method is used to delete resources and is suitable for deletion operations.

Explain secure password hashing in PHP (e.g., password_hash, password_verify). Why not use MD5 or SHA1? Explain secure password hashing in PHP (e.g., password_hash, password_verify). Why not use MD5 or SHA1? Apr 17, 2025 am 12:06 AM

In PHP, password_hash and password_verify functions should be used to implement secure password hashing, and MD5 or SHA1 should not be used. 1) password_hash generates a hash containing salt values ​​to enhance security. 2) Password_verify verify password and ensure security by comparing hash values. 3) MD5 and SHA1 are vulnerable and lack salt values, and are not suitable for modern password security.

Explain Arrow Functions (short closures) introduced in PHP 7.4. Explain Arrow Functions (short closures) introduced in PHP 7.4. Apr 06, 2025 am 12:01 AM

The arrow function was introduced in PHP7.4 and is a simplified form of short closures. 1) They are defined using the => operator, omitting function and use keywords. 2) The arrow function automatically captures the current scope variable without the use keyword. 3) They are often used in callback functions and short calculations to improve code simplicity and readability.

PHP in Action: Real-World Examples and Applications PHP in Action: Real-World Examples and Applications Apr 14, 2025 am 12:19 AM

PHP is widely used in e-commerce, content management systems and API development. 1) E-commerce: used for shopping cart function and payment processing. 2) Content management system: used for dynamic content generation and user management. 3) API development: used for RESTful API development and API security. Through performance optimization and best practices, the efficiency and maintainability of PHP applications are improved.

PHP: A Key Language for Web Development PHP: A Key Language for Web Development Apr 13, 2025 am 12:08 AM

PHP is a scripting language widely used on the server side, especially suitable for web development. 1.PHP can embed HTML, process HTTP requests and responses, and supports a variety of databases. 2.PHP is used to generate dynamic web content, process form data, access databases, etc., with strong community support and open source resources. 3. PHP is an interpreted language, and the execution process includes lexical analysis, grammatical analysis, compilation and execution. 4.PHP can be combined with MySQL for advanced applications such as user registration systems. 5. When debugging PHP, you can use functions such as error_reporting() and var_dump(). 6. Optimize PHP code to use caching mechanisms, optimize database queries and use built-in functions. 7

See all articles