人人都懂的 Web 应用程序

你将学到什么

课程概况

This specialization is a basic introduction to building web applications, and is an excellent starting point for learners who already have a basic understanding of programming, HTML, and CSS. In Web Applications for Everybody, learners will be introduced to web and database applications in PHP, using SQL for database creation, as well as functionality in JavaScript, jQuery, and JSON.

This specialization (and its prerequisites) will prepare learners with no experience in programming or technology for an entry level web developer position in PHP.

包含课程

课程1
Building Web Applications in PHP

In this course, you'll explore the basic structure of a web application, and how a web browser interacts with a web server. You'll be introduced to the request/response cycle, including GET/POST/Redirect. You'll also gain an introductory understanding of Hypertext Markup Language (HTML), as well as the basic syntax and data structures of the PHP language, variables, logic, iteration, arrays, error handling, and superglobal variables, among other elements. An introduction to Cascading Style Sheets (CSS) will allow you to style markup for webpages. Lastly, you'll gain the skills and knowledge to install and use an integrated PHP/MySQL environment like XAMPP or MAMP.

课程2
Introduction to Structured Query Language (SQL)

In this course, you'll walk through installation steps for installing a text editor, installing MAMP or XAMPP (or equivalent) and creating a MySql Database. You'll learn about single table queries and the basic syntax of the SQL language, as well as database design with multiple tables, foreign keys, and the JOIN operation. Lastly, you'll learn to model many-to-many relationships like those needed to represent users, roles, and courses.

课程3
Building Database Applications in PHP

In this course, we'll look at the object oriented patterns available in PHP. You'll learn how to connect to a MySQL using the Portable Data Objects (PDO) library and issue SQL commands in the the PHP language. We'll also look at how PHP uses cookies and manages session data. You'll learn how PHP avoids double posting data, how flash messages are implemented, and how to use a session to log in users in web applications. We'll then build the first 'complete' application that has multiple screens to Create, Read, Update and Delete (CRUD) our data. This brings all the previous concepts together and will form the basis for all later web applications.

课程4
JavaScript, jQuery, and JSON

In this course, we'll look at the JavaScript language, and how it supports the Object-Oriented pattern, with a focus on the unique aspect of how JavaScript approaches OO. We'll explore a brief introduction to the jQuery library, which is widely used to do in-browser manipulation of the Document Object Model (DOM) and event handling. You'll also learn more about JavaScript Object Notation (JSON), which is commonly used as a syntax to exchange data between code running on the server (i.e. in PHP) and code running in the browser (JavaScript/jQuery). It is assumed that learners have already taken the Building Web Applications and Building Database Applications in PHP courses in this specialization.

预备知识

Students should know programming in general (i.e. the skills gained in the Python for Everybody specialization). While the course contains a very quick introduction to HTML and CSS, students would be better prepared if they took courses in the Web Design for Everybody specialization.

证书或学分

No, you will not earn university credit.