Using Valve/Steam API to get multiple IDs converted - php

Question

So this is a VERY long explanation.
I have a Counter-Strike: Source server, with an in-game plugin for a store. This store saves its data in a MySQL Database (for this instance, named 'store'). The store keeps track of player's money in that database (on column 'credits' in table 'users'). It stores the clients based on a 'steam_id' (unique to every client)
The format of a 'steam_id' is (example): STEAM_0:0:123456789 OR STEAM_0:1:12345789.
My page that I have displays the top 1000 users from the database (sorted by credits).
My Problem: I need to convert these ugly steam_id's to actual names.
Where I am right now:
Steam API Documentation
According to the API documentation, I have to use 'community ids' when I query the API. If I want to get more than one user, I can use commas to separate community ids in the GET string.
(http://api.steampowered.com/ISteamUser/GetPlayerSummaries/v0002/?key=APIKEY&steamids=76561197960435530,76561197960435531&format=json)
I have a function that converts the steam_id's to API-acceptable ID's.
function SteamID2CommunityID($steam_id){
$parts = explode(':', str_replace('STEAM_', '' ,$id));
$communityID = bcadd(bcadd('76561197960265728', $parts['1']), bcmul($parts['2'], '2'));
return $communityID;
}
With that, I can make my list of comma separated community ids with this:
while ($row = $mysqli->fetch_assoc($request)) {
$ids .= ',' . SteamID2CommunityID($row['steamid']) . ',';
}
Now for the tricky part, all these values come back in one JSON array. I need to add something, so when I display my data, I can convert a 'steam_id' straight to a 'name' (with the existing array).
Example of an output (most keys & values are removed to make it readable)
Array (
[response] => Array
(
[players] => Array
(
[0] => Array
(
[steamid] => 76561198010207577
[personaname] => [rGA] Stainbow
)
[1] => Array
(
[steamid] => 76561197966653036
[personaname] => |K}{R|Mastarious(MNBH)
)
)
)
)
So again, how would I go about going straight from a 'steam_id' to a name?
Thank you to anybody who can provide code and/or suggestions!

Answer 1

This is a variant duplicate of another Stack Overflow question, which is more practical and less localized, but I might as well answer this.
Assuming that your input steam_id is $INPUT and your final output array is stored in $OUTPUT, this is the functional foreach approach that you could use to convert steam_id to personaname:
/**
* Convert steam_id to personaname
* #returns STRING The name associated with the given steam_id
* BOOL FALSE if no match was found
*/
function steamID_to_name($INPUT, $OUTPUT)
{
// This gets the relevant part of the API response.
$array = $OUTPUT['response']['players'];
// Using your function to convert `steam_id` to a community ID
$community_id = SteamID2CommunityID($INPUT);
// Linear search
foreach ($array as $array_item)
{
// If a match was found...
if ($community_id == $array_item['steamid'])
// Return the name
return $array_item['personaname'];
}
// If no match was found, return FALSE.
return false;
}