When you need your web page automatically refresh in 5 second or any second you want, you can use this meta tag. It's a simple code, put it between tag
...
on your web page.
This script is easy but powerful. Many websites use this script to redirect their web page or refresh the same page, for example, my website updates in every 10 minutes and I want to show user my latest content then I put this script to my page and set it refreshs in every 10 minutes.
Code
<HEAD>
<meta http-equiv='refresh' content='2;url='file_name or URL'>
</HEAD>
// content = time (second).
// file_name = name of file you want to refresh or redirect.
// URL = URL of website that you want to redirect to.
PHP provides a function to get the width and height of an image. The getimagesize() function will determine the size of image file including flash file(swf).
When users sign up to join your website you may want to verify their email address by sending confirmation link to their email address. You'll learn how to do this in this tutorial.
