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How to redirect web URL in PHP, Coldfusion and HTML

web page redirection is very common in web development, so for instance if some tried to access a paged without a valid authenticated session he will be redirected to a login page. Also if you move your site from a place to another you need to redirect traffic that goes to the old one to move to the new one.

How to redirect to another URL?

In coldfusion:

In coldfusion you have to use the following tag, please change the url in the cfset below to the URL you want to redirect the traffic to:
<cfset url="http://blog.abusalah.info">
<cflocation url="#url#">

In PHP see the code below, please note to change the URL to the url you want to redirect to:
<?php
$URL="http://blog.abusalah.info";
header("Location: $URL");
?>

In both Coldfusion and PHP when the redirection code is found the page will stop processing and will redirect the traffic. So if the tags are on the top of the page the anyother code in the page will be ignored, but if the code was at the end of the page the whole page will be processed.

In HTML the redirection takes few seconds from 3 to 6 seconds but in PHP and Coldfusion the processing of the page stops and the user is redirected immediately, in HTML the whole page will be loaded before the browser recognizes the redirection, also in HTML the process is done on the user browser but in coldfusion and PHP it is done on the server side.

The code in HTML is as below, also please change the url to the one you want to redirect traffic to, this tag must be added on the top of the page:

<meta http-equiv="refresh" content="0;URL=http://blog.abusalah.info">

If you have any question don't hesitate to comment below.
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