Código PHP:
<?php
include ("conectar.php");
if ($_SESSION['s_personaje'] == 1){
$src = imagecreatefromgif('1.gif');
}
if ($_SESSION['s_personaje'] == 2){
$src = imagecreatefromgif('2.gif');
}
if ($_SESSION['s_personaje'] == 3){
$src = imagecreatefromgif('3.gif');
}
if ($_SESSION['s_personaje'] == 4){
$src = imagecreatefromgif('4.gif');
}
if ($_SESSION['s_personaje'] == NULL){
$src = imagecreatefromgif('4.gif');
}
$img = imagecreatetruecolor(200,200);
imagecopy($img, $src, 0, 0, 0, 0, 200, 200);
header('Content-Type: image/gif');
imagegif($img);
imagedestroy($img);
imagedestroy($src);
?>