Twitch CustomAPI - Random User

<?php
// Set he times to fail when looking for a random follower
$TimesToFail = 10;
// Set timezone to match Twitch servers
date_default_timezone_set("Greenwich");
// Set strings to lowercase... Easier that way
$GeneralQueryLower = strtolower($_GET["GeneralQuery"]);
$BroadcasterLower = strtolower($_GET["Broadcaster"]);
// Pull & decode broadcaster chatter array(s).
$ChatterData = json_decode(@file_get_contents("https://tmi.twitch.tv/group/user/$BroadcasterLower/chatters"), true);
// Call the Random Viewer function.
RandomViewer($GeneralQueryLower, $BroadcasterLower, $ChatterData, $TimesToFail);

function RandomViewer($GeneralQueryLower, $BroadcasterLower, $ChatterData, $TimesToFail)
{
    // Set an empty helper array.
    $ViewerArray = array();
    // Check if it is a valid $GeneralQueryLower.
    if($GeneralQueryLower != "follower" && $GeneralQueryLower != "all" && $GeneralQueryLower != "follower all" && $GeneralQueryLower != "mod" && $GeneralQueryLower != "moderator")
    {
    echo 'Invalid Request. Please indicate with: follower/mod/all...';
    }
    // Everyone in the stream.
    if($GeneralQueryLower == "all" || $GeneralQueryLower == "follower all")
    {
        $ViewerArray = array_merge($ViewerArray,$ChatterData['chatters']['moderators'],$ChatterData['chatters']['staff'],$ChatterData['chatters']['admins'],$ChatterData['chatters']['global_mods'],$ChatterData['chatters']['viewers']);
    }
    // Just the mods, well, anyone above the average viewer.
    if($GeneralQueryLower == "mod" || $GeneralQueryLower == "moderator")
    {
        $ViewerArray = array_merge($ViewerArray,$ChatterData['chatters']['moderators'],$ChatterData['chatters']['staff'],$ChatterData['chatters']['admins'],$ChatterData['chatters']['global_mods']);
    }
    // Just the normal viewers, catch any other invalid input.
    //else // (empty($_GET["GeneralQuery"]) || $GeneralQueryLower == "follower" || $GeneralQueryLower == null || $GeneralQueryLower != "all" || $GeneralQueryLower != "follower all" || $GeneralQueryLower != "mod")
    //{
        //$ViewerArray = $ChatterData['chatters']['viewers'];
    //}

    // Pick a random user from chat after counting the array size.
    $RandomUser = $ViewerArray[mt_rand(0, count($ViewerArray) - 1)];

    // Check if following is required.
    if($GeneralQueryLower == "follower" || $GeneralQueryLower == "all" || $GeneralQueryLower == "follower all" || $GeneralQueryLower == "mod" || $GeneralQueryLower == "moderator")
    {
        // Try and pick a few more viewers.
        for($FailedToFindFollower = 1; $FailedToFindFollower <= $TimesToFail; $FailedToFindFollower++)
        {
            $FailedToFindFollower++;
            $RandomUser = $ViewerArray[mt_rand(0, count($ViewerArray) - 1)];
            $FollowerCheckData = json_decode(@file_get_contents("https://api.twitch.tv/kraken/users/$RandomUser/follows/channels/$BroadcasterLower"), true);
            // Found a follower, print the name and how long they've benn following.
            if($FollowerCheckData['created_at'] != null && $GeneralQueryLower != "follower" || $GeneralQueryLower != "all" || $GeneralQueryLower != "follower all" || $GeneralQueryLower != "mod" || $GeneralQueryLower != "moderator")
            {
                echo $RandomUser . ' (following for ';
                // Get the date and time to be worked with.
                $CreatedDateTime = date('Y-m-d H:i:s', strtotime($FollowerCheckData['created_at']));
                // Call function to print follower date.
                echo GetDateDifference($CreatedDateTime);
                echo ').';
                break;
            }
        }
        // Added a check, in the severe bad luck case no random follower was picked after $TimesToFail trys.
        if($FollowerCheckData['created_at'] == null && $GeneralQueryLower != "follower" || $GeneralQueryLower != "all" || $GeneralQueryLower != "follower all" || $GeneralQueryLower != "mod" || $GeneralQueryLower != "moderator")
        {
            echo 'No follower picked after ';
            echo $TimesToFail;
            echo ' attempts! Please retry.';
        }
    }
    // Just print a user, following not required.
    //else
    //{
        //echo $RandomUser;
    //}
}

// Function to get the date difference. Found at StackOerflow, modified for my use.
function GetDateDifference($datetime)
{
    $now = new DateTime;
    $ago = new DateTime($datetime);
    $diff = $now->diff($ago);
    $diff->w = floor($diff->d / 7);
    $diff->d -= $diff->w * 7;
    $string = array
    (
        'y' => 'year',
        'm' => 'month',
        'w' => 'week',
        'd' => 'day',
        'h' => 'hour',
        'i' => 'minute',
        's' => 'second',
    );
    foreach ($string as $k => &$v) {
        if ($diff->$k) {
            $v = $diff->$k . ' ' . $v . ($diff->$k > 1 ? 's' : '');
        }
        else
        {
            unset($string[$k]);
        }
    }
    return $string ? implode(', ', $string) . '' : '';
}
?>

Example:
RandomUser.php?Broadcaster=esl_CSGO&GeneralQuery=
or
RandomUser.php?Broadcaster=esl_CSGO&GeneralQuery=follower