[SOLVED] So easy a caveman could do it... Um, I can't seem to grow hair...

[WiFiTech]

Here is what we do now:

  We set up free hotspots the help promote the sponsor. We have 4 different hardware devices that have 4 different ways of starting RADIUS authentication. By taking the WAN IP we are able to display and image promoting the sponsor (assuming a static IP), and then have a seperate Welcome page for each device type.

 

Here is what I want to do:

  Have a single Welcome Page, that using a variable that doesn't change allows us to display the sponsor content, as well as, the proper logon authentication info.

 

Here is the direction I am heading:

  Using a url variable, ie. https://domain.com/index.php?location=locationid I would like to use ifelse and php include to display the proper sponsor content and Logon method info.

 

Here is what I can settle for:

  Use 4 different pages for the logon, and get a better image/content script that allows for the DHCP style of WAN IP so that we are not having to constantly check every location for a WAN IP change.

 

Thank you for any help that you can offer, I included the current script below if I could get a different variable to use and the syntax on the php include I would be honored...

<?php
if ($_SERVER['REMOTE_ADDR'] == "10.20.30.40")
{ $image = "https://login.domain.com/image/locationimage01.jpg"; }
if ($_SERVER['REMOTE_ADDR'] == "10.20.30.46")
{ $image = "https://login.domain.com/image/locationimage02.jpg"; }
elseif ($_SERVER['REMOTE_ADDR'] == "10.20.30.4")
{ $image = "https://login.domain.com/image/locationimage03.jpg"; }
elseif ($_SERVER['REMOTE_ADDR'] == "10.20.30.41")
{ $image = "https://login.domain.com/image/locationimage04.jpg"; }
elseif ($_SERVER['REMOTE_ADDR'] == "10.20.30.49")
{ $image = "https://login.domain.com/image/locationimage05.jpg"; }
elseif ($_SERVER['REMOTE_ADDR'] == "10.20.30.42")
{ $image = "https://login.domain.com/image/locationimage06.jpg"; }
elseif ($_SERVER['REMOTE_ADDR'] == "10.20.30.4")
{ $image = "https://login.domain.com/image/locationimage07.jpg"; }
elseif ($_SERVER['REMOTE_ADDR'] == "10.20.30.43")
{ $image = "https://login.domain.com/image/locationimage08.jpg"; }
elseif ($_SERVER['REMOTE_ADDR'] == "10.20.30.47")
{ $image = "https://login.domain.com/image/locationimage09.jpg"; }
elseif ($_SERVER['REMOTE_ADDR'] == "10.20.30.48")
{ $image = "https://login.domain.com/image/locationimage10.jpg"; }
elseif ($_SERVER['REMOTE_ADDR'] == "10.20.30.14")
{ $image = "https://login.domain.com/image/locationimage11.jpg"; }
elseif ($_SERVER['REMOTE_ADDR'] == "10.20.30.24")
{ $image = "https://login.domain.com/image/locationimage12.jpg"; }
elseif ($_SERVER['REMOTE_ADDR'] == "10.20.30.34")
{ $image = "https://login.domain.com/image/locationimage13.jpg"; } 
elseif ($_SERVER['REMOTE_ADDR'] == "10.20.30.54")
{ $image = "https://login.domain.com/image/locationimage14.jpg"; }
elseif ($_SERVER['REMOTE_ADDR'] == "10.20.30.64")
{ $image = "https://login.domain.com/image/locationimage15.jpg"; }
elseif ($_SERVER['REMOTE_ADDR'] == "10.20.30.74")
{ $image = "https://login.domain.com/image/locationimage16.jpg"; }
elseif ($_SERVER['REMOTE_ADDR'] == "10.20.30.84")
{ $image = "https://login.domain.com/image/locationimage17.jpg"; }
else { $image = "https://login.domain.com/image/locationimagedefault.jpg"; }
print "<img src=\"$image\">";
?>
</p>

[effigy]

I did not absorb all of that, but the code can be improved into a structure like so:

 

<pre>
<?php
$ip_images = array(
	'40' => '1.jpg',
	'46' => '2.jpg'
);
function call_image (&$matches) {
	global $ip_images;
	if (array_key_exists($matches[1], $ip_images)) {
		return '<img src="' . $ip_images[$matches[1]] . '"/>';
	}
	else {
		return null;
	}
}
$ip = '10.20.30.46';
echo preg_replace_callback('/\A(?:\d+\.){3}(\d+)\z/', 'call_image', $ip);
?>
</pre>

[WiFiTech]

I like that code, harder to understand but much simpler to deal with, as we add more locations. It looks like we would be able to define the variable value to a coresponding image file by using an array. Thank you for offering that to me effigy.