thinkphp+jcrop打造的强迫症头像制作

//重点代码
//拷贝头像到新画布
$newhead = imageCreatetruecolor(180,180);//新建白板，头像
imagesavealpha($newhead, true);
$color = imagecolorallocatealpha($newhead, 255, 255, 255,127);
imagecolortransparent($newhead,$color);
imagefill($newhead, 0, 0, $color);	
imagecopyresampled($newhead,$image,20,20,0,0,imagesx($image),imagesy($image),imagesx($image),imagesy($image));

//新建画布拷贝数字背景				
$num_bg="./Public/Images/icon-head2.png";
$num_bg_src = imagecreatefrompng($num_bg);

$num_bg_new = imageCreatetruecolor(imagesx($num_bg_src),imagesy($num_bg_src));
imagesavealpha($num_bg_new, true);
//为真彩色画布创建白色背景，再设置为透明
$color = imagecolorallocatealpha($num_bg_new, 255, 255, 255,127);
imagecolortransparent($num_bg_new,$color);
imagefill($num_bg_new, 0, 0, $color);
imagecopyresampled($num_bg_new,$num_bg_src,0,0,0,0,imagesx($num_bg_new),imagesy($num_bg_new),imagesx($num_bg_new),imagesy($num_bg_new));