PHP Set Roblox Avatar to Image

Question

I've been trying to figure this out for like 3 hours and am not getting anywhere. I'm trying to set the img src in the avatar div to the Roblox user's avatar URL with this endpoint https://thumbnails.roblox.com/v1/users/avatar-bust?userIds=3102777127&size=150x150&format=Png&isCircular=true but it requires usernames and my data is usernames so we have to use this endpoint to get IDs https://api.roblox.com/users/get-by-username?username=VOICECHAT22983 . I have been trying a bunch of different stuff and nothing is working and just getting a bunch of errors.

This is how the data looks:

brenda12322323
eunaodoaisnudhnac
Lovesroblox1334
Cho5963
Sinmin191
vikaa_qwixxk
yourfav_stepsister
SnipesG0D

This is the PHP Code

<?php
$lines = file('../txt/names.txt');
foreach ($lines as $line) {
    echo '<div class="avatar">
        <img src="'.$avatar.'" alt="">
        <h1>' . $line . '</h1>
        <a href="https://www.roblox.com/users/'.$id.'/profile">Profile</a>
    </div>';
}
?>

I'm trying to set the $id variable as the user's ID and the avatar variable as the image URL

Answer 1

You need to get all the IDs first from the get-by-username endpoint, pass those into the avatars endpoint, then put the data back together:

<?php

/*

Question Author: cdnAshton
Question Answerer: Jacob Mulquin
Question: PHP Set Roblox Avatar to Image
URL: https://stackoverflow.com/questions/74977675/php-set-roblox-avatar-to-image
Tags: php, roblox

*/

function get_id_by_username($name)
{
    $url = 'https://api.roblox.com/users/get-by-username?username=' . $name;
    echo 'getting ' . $url . PHP_EOL;
    return json_decode(file_get_contents($url), true);
}

function get_avatar_urls($ids)
{
    $ids_param = implode(',', $ids);
    $url = 'https://thumbnails.roblox.com/v1/users/avatar-bust?userIds='.$ids_param.'&size=150x150&format=Png&isCircular=true';
    return json_decode(file_get_contents($url), true);
}

if (!file_exists('users.json')) {
    $names = file('names.txt');
    $users = [];
    foreach ($names as $name) {
        $name = trim($name);
        $id = get_id_by_username($name);
        $users[$id['Id']] = $id;
        sleep(15); // Needed otherwise you will hit API rate-limits
    }

    file_put_contents('users.json', json_encode($ids, JSON_PRETTY_PRINT)); 
} else {

    $users = json_decode(file_get_contents('users.json'), true);

    $ids = [];
    foreach ($users as $user) {
        $ids[] = $user['Id'];
    }
    $avatars = get_avatar_urls($ids);

    foreach ($avatars['data'] as $avatar) {
        $users[$avatar['targetId']]['AvatarUri'] = $avatar['imageUrl'];
    }

    file_put_contents('users.json', json_encode($users, JSON_PRETTY_PRINT)); 
}

The script is executed twice, the first time it will read the names from names.txt , and get the IDS, saving into a users.json file. Then when you execute it again, it will get the IDs from the JSON file, then call the avatars and then merge it back together. The result is a JSON file like so:

{
    "3528175625": {
        "Id": 3528175625,
        "Username": "brenda12322323",
        "AvatarUri": "https:\/\/tr.rbxcdn.com\/3c195f46b44d37aa250c0d7c6ae41ded\/150\/150\/AvatarBust\/Png\/isCircular",
        "AvatarFinal": false,
        "IsOnline": false
    },
    "4028593775": {
        "Id": 4028593775,
        "Username": "eunaodoaisnudhnac",
        "AvatarUri": "https:\/\/tr.rbxcdn.com\/0fc96af99739e29c780af459db6c2bd8\/150\/150\/AvatarBust\/Png\/isCircular",
        "AvatarFinal": false,
        "IsOnline": false
    }
}

Then to output this information on a webpage:

$users = json_decode(file_get_contents('users.json'), true);

foreach ($users as $user) {
    echo '<div class="avatar">
    <img src="'.$user['AvatarUri'].'" alt="">
    <h1>' . $user['Username'] . '</h1>
    <a href="https://www.roblox.com/users/'.$user['Id'].'/profile">Profile</a>
    </div>';
}

Gives you something like this: