October 2017
Beginner
690 pages
12h 43m
English
Content preview from PHP & MySQL: Novice to Ninja, 6th Edition
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Chapter 8: Objects and Classes
In the last chapter, I showed you how to write generic, reusable functions that could be used to manipulate any database table. In this chapter, we’ll move those functions into a class, to avoid some of the repetition that’s needed when they’re used.
One of the biggest problems with functions is that all the information they need to execute has to be sent to them in arguments. In the case of the delete function we wrote, there are four pieces of information:
- the
$pdodatabase instance - the name of the table to delete from
- the name of the primary key field
- the value to delete
The same is true of all the functions—findById, findAll, update, insert and save. Each of the functions we created needs to be passed at ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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