[PHP] base64 데이터를 이미지로 저장하기

<?
$data = "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZQAAALQCAYAAAC35IZ~~~~~~~";
$src = explode(',',$data);
$result = base64_decode($src[1]);

$saveDir = "image.png";
file_put_contents($saveDir, $result);
?>