Loading Files to Run
Lab: PHP 101: Gentle Introduction to WordPress Programming
Video Runtime: 13:20
You need to load files. Right? In PHP you use one of these constructs to load a file into memory (which then makes it run):
include( 'path/to/file' )
include_once( 'path/to/file' )
require( 'path/to/file' )
require_once( 'path/to/file' )
Let’s look at how these work as well as talk about when you want to use one over the other. You’ll try to load a file that doesn’t exist and see that include
gives you a warning while require
causes the site to stop with a fatal error.
Break. Go rest your noodle for a couple of minutes.
Episodes
Total Lab Runtime: 03:21:32
- 1 Lab Introductionfree 11:37
- 2 What is PHP? Why use it?free 17:49
- 3 Why and how does WordPress use PHP?free 07:33
- 4 Syntax Basicsfree 18:34
- 5 What's the deal with Variables?free 27:05
- 6 Break Up Code into Logical Partsfree 07:55
- 7 Subroutines - Behold the functionfree 14:11
- 8 Loading Files to Runfree 13:20
- 9 To Run or Not to Run - Making Decisionsfree 19:07
- 10 Sequencing - Yup, code runs in orderfree 06:16
- 11 Repeating code using Loopsfree 13:57
- 12 Building Strings with Dots and Variablesfree 15:10
- 13 What's the deal with scope?free 08:34
- 14 Naming Stufffree 06:18
- 15 Putting it All Togetherfree 08:33
- 16 Where do I go from here?free 05:33