Bootstrap - CSS Framework
Why Use Bootstrap?
Advantages of Bootstrap:
- Easy to use: Anybody with just basic knowledge of HTML and CSS can start using Bootstrap
- Responsive features: Bootstrap's responsive CSS adjusts to phones, tablets, and desktops
- Mobile-first approach: In Bootstrap 3, mobile-first styles are part of the core framework
- Browser compatibility: Bootstrap is compatible with all modern browsers (Chrome, Firefox, Internet Explorer, Edge, Safari, and Opera)
Complete the Bootstrap Tutorial Click Here
Do the examples in note pad ++ save file as .html and then you can open in your browser.
Use this as your HTML template
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.0/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.0/js/bootstrap.min.js"></script>
</head>
<body>
</body>
</div>
</html>
[slideshare id=76832574&doc=bootstrap3-170611014220]
AJAX
AJAX is the art of exchanging data with a server, and updating parts of a web page - without reloading the whole page.
What is AJAX?
AJAX = Asynchronous JavaScript and XML.
In short; AJAX is about loading data in the background and display it on the web page, without reloading the whole page.
Examples of applications using AJAX: Gmail, Google Maps, Youtube, and Facebook tabs.
Lesson ( AJAX )
Learning Objectives
AJAX is the art of exchanging data with a server, and updating parts of a web page - without reloading the whole page.
Examples of applications using AJAX: Gmail, Google Maps, Youtube, and Facebook tabs.
AJAX: Synchronous or Asynchronous
AJAX can access the server both synchronously and asynchronously:
Activity Using the AJAX LOAD method
The jQuery load() method is a simple, but powerful AJAX method.
The load() method loads data from a server and puts the returned data into the selected element.
Follow example to display the contents of text file demo_test.txt
Open up localhost by running XAMPP
Create in your work folder 2 files.
"demo_test.txt" that contains
<h2>jQuery and AJAX is FUN!!!</h2>
<p id="p1">This is some text in a paragraph.</p>
HTML file
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script>
$(document).ready(function(){
$("button").click(function(){
$("#div1").load("demo_test.txt");
});
});
</script>
</head>
<body>
<div id="div1"><h2>Let jQuery AJAX Change This Text</h2></div>
<button>Get External Content</button>
</body>
</html>
PHP IP Address
<?php
// Get the client ip address
$ipaddress = $_SERVER['REMOTE_ADDR'];
echo $ipaddress;
?>