imagerotate因小图片而失败

Question

我有1x2px图像，当我使用imagerotate时出现此错误

Warning: imagerotate(): gd warning:
one parameter to a memory allocation multiplication is negative or zero,
failing operation gracefully in file#line

示例代码 标题（＆＃39;内容类型：image / png＆＃39;）;

$angle = 320;

$image = imagecreatefrompng('small.png');
$bg_color = imagecolorallocatealpha($image, 0, 0, 0, 127);
$temp_image = imagerotate($image, -$angle, $bg_color);
imagesavealpha($image, 1);

imagepng($image);

此问题是否有解决方法？

PHP 5.5.12 WAMP