Else and elseif are commonly used logical expressions in PHP. These statements are alternate parts of code that execute only when an if statement returns a false value. The elseif expression is used to add other conditions to the if statement. Learn how to use else and elseif statements in this PHP with MySQL training video.
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In the last movie, we saw the basics of an if statement and how we could have a …section of code that only executes if an expression evaluates to true. …In this movie, we're going to build on that by talking about else and else if. …That is the ability to have an alternative that gets executed if …something is not true. Let's take a look. …So, if we have if a is greater than b, we want to echo a is larger than b. …We can use else immediately after it to say if that's not true, then the …alternative version, should be to echo this section of code.…
This statement, echo a is not larger than b. …So one of these two things will be true. We've basically divided the path into two …and said, if this is true, do the first statement, else do the second statement. …Now again, this is without the curly braces, which is suitable if you have …only a single line of code, but I'm going to strongly encourage you, even if …you have a single line of code to always use curly braces. …And if you have multiline code, you'll definitely want to use them. …
- What is PHP?
- Installing and configuring PHP and MySQL
- Exploring data types
- Controlling code with logical expressions and loops
- Using PHP's built-in functions
- Writing custom functions
- Building dynamic webpages
- Working with forms and form data
- Using cookies and sessions to store data
- Connecting to MySQL with PHP
- Creating and editing database records
- Building a content management system
- Adding user authentication
Skill Level Beginner
PHP with MySQL Beyond the Basicswith Kevin Skoglund10h 26m Intermediate
1. PHP Overview
2. Mac Installation
3. Windows Installation
4. First Steps
5. Exploring Data Types
6. Control Structures: Logical Expressions
7. Control Structures: Loops
8. User-Defined Functions
10. Building Web Pages with PHP
11. Working with Forms and Form Data
12. Working with Cookies and Sessions
13. MySQL Basics
14. Using PHP to Access MySQL
15. Building a Content Management System (CMS)
16. Using Site Navigation to Choose Content
17. Application CRUD
18. Building the Public Area
19. Regulating Page Access
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