More or less. Here's a quick and dirty with help of DarthNinja's code:
PHP Code:
<?php
if ($_GET['s'])
{
$steam_id=strtolower($_GET['s']);
if (substr($steam_id,0,7)=='steam_0') {
$tmp=explode(':',$steam_id);
}
if ((count($tmp)==3) && is_numeric($tmp[1]) && is_numeric($tmp[2])){
//The 'Magic Number': 76561197960265728
//Split up so it can be calculated without an extension.
$steamidCalc=($tmp[2]*2)+$tmp[1]; //Work out step 1
$calckey='1197960265728'; //Second bit of the magic number
$pre='7656'; //First bit of the magic number
$steamcid=$steamidCalc+$calckey; //works out the ending of the steam community ID
$link="http://steamcommunity.com/profiles/";
//echo $link; echo $pre; echo $steamcid;
header('Location: http://steamcommunity.com/profiles/'.$pre.$steamcid);
};
}
?>
Usage: steamid.php?s=STEAM_0:1:23456