Force A Secure Page Using PHP
Many pages, most often pages with forms or pages that serve personal information, require the need to be served over a secure connection. Even recreational internet users have gotten accustomed to looking for "lock" icon within their browser before inputting data into a web form. For the benefit of the business and its website visitors, it's important to ensure that a form page be secured.
To ensure that you page is served over a secure connection, you must first acquire a security certificate. Popular SSL certificate providers include Verisign, Thawte, and GoDaddy (whom I prefer). Once your SSL certificate has been installed on the server, you may add the following code snipped at the top of any page you would like secured:
The PHP Code
//force redirect to secure page
if($_SERVER['SERVER_PORT'] != '443') { header('Location: https://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI']); exit(); }
The above code forces the script to run on secure port 443 as opposed to port 80. Thus, the page is served securely.
![9 Mind-Blowing WebGL Demos]()
As much as developers now loathe Flash, we're still playing a bit of catch up to natively duplicate the animation capabilities that Adobe's old technology provided us. Of course we have canvas, an awesome technology, one which I highlighted 9 mind-blowing demos. Another technology available...
![Create Namespaced Classes with MooTools]()
MooTools has always gotten a bit of grief for not inherently using and standardizing namespaced-based JavaScript classes like the Dojo Toolkit does. Many developers create their classes as globals which is generally frowned up. I mostly disagree with that stance, but each to their own. In any event...
![Create a Context Menu with Dojo and Dijit]()
Context menus, used in the right type of web application, can be invaluable. They provide shortcut methods to different functionality within the application and, with just a right click, they are readily available. Dojo's Dijit frameworks provides an easy way to create stylish, flexible context...
![Duplicate DeSandro’s CSS Effect]()
I recently stumbled upon David DeSandro's website when I saw a tweet stating that someone had stolen/hotlinked his website design and code, and he decided to do the only logical thing to retaliate: use some simple JavaScript goodness to inject unicorns into their page.
This doesn’t work :-(
Do the webpage need to be php? The page I need secure is html.
Please help. Thanks!
Works just fine for me. Thanks!
niaomi, the code is php so yeah it will need to be run on a php page!!
@niaomi: yes niaomi, it must be PHP
Didn’t work for me. Got error message “Warning: Cannot modify header information – headers already sent”.
Probably has something to do with my hosting company….who knows.
Check your
session_start();I had an issue like his before, I had to silence it withob_start();but how to get back to normal http page from https?
@Mikey on June 1, 2011 @ 10:53 am
Didn’t work for me. Got error message “Warning: Cannot modify header information – headers already sent”.
Probably has something to do with my hosting company….who knows.
……………..
you cannot use header in a page that has any output before it.
html is an output.so you use header after html data,and you get the error you did.
Didn’t work for me either. Am I supposed to add the
tags around the code you shows above? I am also getting the cannot modify header information error and I don’t understand your reply above.That should have said the php tags around the code you show above.
brandon,it will work just fine.
do this.
opn d php file and at the beginning of the file before u start any code,do this:
Worked beautifully for me right out of the box. Those having problems, here is what you need to do.
Place this at the tippety-top of your PHP web page:
Once you’ve done that, and saved it as “whatever.php”, it should work like a charm.Hi,
its working great for me but as Alex asked, how do you get back to non ssl when you navigate away from that page?… it seems to make everything after SSL protected.
Thanks in advance!
Using it the opposite way:
if($_SERVER['SERVER_PORT']!='80'){header('Location: http://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI']);exit();}and yes, wrap in PHP tags: on a PHP page.
This works as described except that when I navigate back to other pages on the site, they are loading as https:// which I would prefer not happen… can you offer an adjustment to correct this? Many thanks, Ross.
Another way could be:
if(empty($_SERVER['HTTPS']) || $_SERVER['HTTPS'] != "on") { header('Location: https://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI']); exit(); }This might not work in all cases though. I use CloudFlare SSL which is SSL between the browser and the CDN. Checking the server settings for HTTPS won’t actually work as they’re not set for SSL.
Correct?