jijijiji FUNCIONO !!!!
jejejej
Código PHP:
$img = imagecreatefromstring($imagen);
$picsize = $_GET['size'];
$new_w = imagesx($img);
$new_h = imagesy($img);
$aspect_ratio = $new_h / $new_w;
if ($new_w < $new_h){
$new_w = 80;
}
else{
$new_w = $picsize;
}
$new_h = abs($new_w * $aspect_ratio);
$dst_img = ImageCreateTrueColor($new_w,$new_h);
imagecopyresampled($dst_img,$img,0,0,0,0,$new_w,$new_h,imagesx($img),imagesy($img));
imagejpeg($dst_img,'',100);