Simphax

<?php

/* CONFIG */

$skinurl = 'http://s3.amazonaws.com/MinecraftSkins/'; //Where to download the full skins.

$cachelifetime = 7; // Set how long time (in days) the face will be loaded from a cached copy before updating from minecraft.net. Set to 0 if you do not want this feature.

$cachepath = 'cache/'; // Where to store cached copies.

$timeout = 2; // Timeout for fetching a skin png from minecraft.net. Needed if their servers die.

/* END CONFIG */

function fallback() {
    header('Content-Type: image/png');
    readfile('player.png');
    exit();
}

if(isset($_GET['nick'])) {

    $nick = $_GET['nick'];
    $cachedpng = $cachepath.$nick.'.png';
    $skinurl = $skinurl.$nick.'.png';
    $old = ini_set('default_socket_timeout', $timeout);

    if (file_exists($cachedpng) && filemtime($cachedpng) >= (time() - ($cachelifetime * 24 * 60 * 60))) {

        header('Content-Type: image/png');
        readfile($cachedpng);

        exit();

    } elseif ($file = @fopen($skinurl, "r")) {

            $src = @imagecreatefrompng($skinurl)
                or fallback();
            $dest = imagecreatetruecolor(24, 24);

            imagecopyresized($dest, $src, 0, 0, 8, 8, 24, 24, 8, 8);

            header('Content-Type: image/png');
            imagepng($dest);

            if($cachelifetime != 0)
                imagepng($dest,$cachedpng);

            imagedestroy($dest);
            imagedestroy($src);

            exit();

    }

    ini_set('default_socket_timeout', $old);

} elseif (isset($_GET['clearcache'])) {

    $mask = $cachepath.'*.png';
    array_map( 'unlink', glob( $mask ) );

    echo 'Cache clear: DONE';

    exit();

}

// On error or no input:
fallback();

?>