PHP stores the values for all cookies in a super global associative array variable called $_COOKIE. Using PHP code for reading cookie values can be fast and efficient using the keys of the array. This video, as part of the PHP with MySQL series, demonstrates how to view the contents of the $_COOKIE array. You will also learn the importance of checking if a cookie is set before trying to access it, as well as advice on coding practice using the ternary operator for concise and clean code.
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We now know how to set a cookie using PHP. …Next, we need to learn how to use PHP to read back cookie values. …As we saw in the first movie of this chapter, PHP takes all cookie values, …sent in the request header. And puts them in an associative array, …assigned to the super-global $_COOKIE. That's cookie, singular, not plural. …Even though this associative array might contain data from several cookies. …It's still going to be singular in it's name, don't let that trip you up. …And the way that we'll access our values in there is by using our key to get the …value from the associative array. Very much like we did when we were …working with get and post requests. Let's try it now.…
So, I'm going to start out by working with my existing cookies.php file. …I'd already set a cookie here before. If you haven't done that, or if you …deleted yours, you'll want to set a new one now. …So, go ahead and load this page up in a browser. …Reload the page, make sure that you have set that cookie. …And then, I'm going to comment it out, so that it's not actually setting it. …
- 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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