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Michael P

Apr 4 2005, 05:29 PM

Hi, I am wondering how to create an image similar to the ones in the IPB ACP which say version upto date, or update available.

Either something as basic as that or something more complicated like.

image URL = check.php?clientID=xxx

this checks for data in the page where clientID=xxx to display if website is licensed, or to display if support is still available etc.

Can anyone help me out,

Regards,

Michael

Chad

Apr 4 2005, 07:55 PM

I'll post the code I use for you.

CODE

<?php
$crrnt_version = @implode("",file("_PATH_TO_LATEST_VERSION_FILE_"));
$val = preg_replace("/^v(.+?)\.(.+?)/","\\1.\\2",$_GET['v']);

$val = preg_replace( "/\\\$/" , "$" , $val ); // Yeah, I doubt it
$val = preg_replace( "/\r/" , "" , $val ); // Remove literal carriage returns
$val = str_replace( "&" , "&" , $val ); // Change out amp;
$val = str_replace( "" , "-->" , $val ); // ^
$val = preg_replace( "/<script/i" , "<script" , $val ); // So you want to run a script? I don't think so
$val = preg_replace( "/\n/" , "<br>" , $val ); // Convert literal newlines
$val = str_replace( "!" , "!" , $val ); // No Excl!
$val = str_replace( ">" , ">" , $val ); // No >
$val = str_replace( "<" , "<" , $val ); // No <
$val = str_replace( "\"" , """ , $val ); // No Quotes
$val = str_replace( "'" , "'" , $val ); // IMPORTANT: It helps to increase sql query safety.

if ($val!=$crrnt_version)
{
header ("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header('content-type: image/gif');
readfile('_PATH_TO_UPDATE_IMAGE_');
}
elseif ($val==$crrnt_version)
{
header ("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header('content-type: image/gif');
readfile('_PATH_TO_UPDATE_TO_DATE_IMAGE_');
}
?>

Call that code like so:

CODE

Make sure its a GIF image. You can modify the script to use a PNG or JPEG.
You can play around with the code to see what goodies you come up with.