Скачать или смотреть Advance Practical PHP - Functions Explain - video #3

This is my 3rd video and I want to discuss ‘Functions’. I am breaking this function tutorial into two videos.

If you remember on video 2, I created a PHP file and called it “PHPTest.php”. I also mentioned that I was going to show you how to create a CRUD project at the end of this course you will learn how to read/insert and delete from a database.

You will learn how to create/read a JSON file. And how to create reports and upload a file(s). This is the stuff that clients ask for all the time. With this project you can create other projects that requires you to use a database. It is all there.

But first, PHP functions are the real power. And you don’t have to declare types for your parameters. We will discuss “Type Hinting” later.

Let’s continue PHP has more than 1000 built-in functions. I will discuss more about the built-in ‘Functions’ that PHP provides on another video.

There’s different types of functions like: type parameters, return types, variable scope, anonymous functions, and variadic functions.

A function is a block of statements that can be used repeatedly in a application. A function will take parameters, do some calculation and return the results.

It does not execute automatically when a page loads. It executes when you invoke them That is how it works.

Let’s create a function and call it ‘add()’ and put a parameter in it.

Remember, Parameters are what is declare in a “function ()”. And what you pass into the invocation is called ‘Augments’.

Arguments by default are “Pass by Value”. Which means that the function’s argument(s) value is changed within, but it does not get changed outside of the function.

Here, I am providing you with a PDF document. This document has all of the examples with explanations.

https://convertowordpress.com/practic...

Check out the PHP manual that is available online -
https://www.php.net/docs.php

If you want a developer to create your web design project.

Visit: https://convertowordpress.com