php怎么生成圆角图片(二)

$size = getimagesize($image_file);

// Top-left corner

$background = imagecreatetruecolor($size[0],$size[1]);

imagecopymerge($background,$image,0,0,0,0,$size[0],$size[1],100);

$startx=$size[0]*2-1;

$starty=$size[1]*2-1;

$im_temp = imagecreatetruecolor($startx,$starty);

imagecopyresampled($im_temp, $background, 0, 0, 0, 0, $startx, $starty, $size[0], $size[1]);

$bg = imagecolorallocate($im_temp, hexdec(substr($backcolor,0,2)),hexdec(substr($backcolor,2,2)),hexdec(substr($backcolor,4,2)));

$fg = imagecolorallocate($im_temp, hexdec(substr($forecolor,0,2)),hexdec(substr($forecolor,2,2)),hexdec(substr($forecolor,4,2)));

if ($topleft == true) {

imagearc($im_temp, $startsize, $startsize, $arcsize, $arcsize, 180,270,$bg);

imagefilltoborder($im_temp,0,0,$bg,$bg);

}