This section will show you how to build useful and meaningful applications using many new HTML features.
Usually the structure of the the pages is known so scrappers have reduced complexity compared to parsers and crawlers.
In this tutorial we are going to create a simple parser that extract the title and favicon from any html page. Usually scrappers are based on regular expressions but we are going to avoid them because they are difficult to manage and sometimes they have unexpected results.
We are going to use simple php string functions instead. Those operations can be covered using only 2 simple functions: Optionally, another substring or index could be specified to start the search only after it: It indicates the index where the search should start.
Here is the scraping section: The title and the first h1 tag is extracted, then the favico. If no favico is found the code returns the default one according to the convention it should be the "favicon. This example demonstrate how to retrieve a couple of simple values using a simple algorithm.
It can be reused and extended to scrap any data from webpages. A regular expression parser would be a more flexible solution but it requires a good regex knowledge.
If you have question, requests or new ideas just use the comments section to submit them. Did you enjoy this tutorial? Be sure to subscribe to the our RSS feed not to miss our new tutorials!Dynatable is a funner, semantic, interactive table plugin using jQuery, HTML5, and JSON.
|animations||We encourage this, and you may also consider using one of the many online sources that provide a basic HTML5 starting point for you. The doctype should always be the first item at the top of any HTML file.|
|A Basic HTML5 Template For Any Project — SitePoint||It gives the user a better experience as his input is checked before sending it to the server meaning there is less time to wait for feedback.|
|HTML5 Introduction||It gives the user a better experience as his input is checked before sending it to the server meaning there is less time to wait for feedback.|
|Table of Contents||IE 9 Beta and Opera|
And it's not just for tables. We’ve already had a glimpse at Server-Sent Events (also known as EventSource †, and I’ll switch between the two to keep you on your toes) in my Methods of Communication article from last year.
In this article, I want to delve in to more detail about the SSE API, demonstrate its features, and even show you how to polyfill browsers that lack EventSource support. Abstract. This specification defines the 5th major version, second minor revision of the core language of the World Wide Web: the Hypertext Markup Language (HTML).
In simple terms, HTML tells the This is where you will write your HTML5 markup and CSS3 styles to be presented by a browser.
Most OS come with a built in editor (Notepad and WordPad on Windows OS, Beginner's Guide to HTML5 and CSS3 - Writing Your First Code (Series 1 of 12).