Basic script which allows us to scrape the avatar and name of a steam profile

steam-profile.php

<?php

function getProfile($steamId) {
    $contents = file_get_contents('https://steamcommunity.com/profiles/' . $steamId);
    
    $dom = new DOMDocument();
    
    libxml_use_internal_errors(true);
    $dom->loadHTML($contents);
    libxml_clear_errors();
    
    $xpath = new \DOMXPath($dom);
    
    $steamDetails = [];
    
    // TODO: Re-write the XPath queries.
    foreach ($xpath->query('/html/body/div[1]/div[7]/div[3]/div[1]/div[1]/div/div/div/div[1]/div[1]/span[1]') as $name) {
        $steamDetails['name'] = $name->nodeValue;
        break;
    }
    
    foreach ($xpath->query('/html/body/div[1]/div[7]/div[3]/div[1]/div[1]/div/div/div/div[2]/div/img/@src') as $avatarSource) {
        $steamDetails['avatarSource'] = $avatarSource->value;
        break;
    }
    
    echo json_encode($steamDetails);
}

getProfile('76561198028510846');