具体如下：代码如下:?php$image_file = $_GET['src'];$corner_radius = isset($_GET['radius']) ? $_GET['radius'] : 20; // The default corner radius is set to 20px$topleft = (isset($_GET['topleft']) and $_GET['topleft'] == no) ? false : true; // Top-left rounded corner is shown by default$bottomleft = (isset($_GET['bottomleft']) and $_GET['bottomleft'] == no) ? false : true; // Bottom-left rounded corner is shown by default$bottomright = (isset($_GET['bottomright']) and $_GET['bottomright'] == no) ? false : true; // Bottom-right rounded corner is shown by default$topright = (isset($_GET['topright']) and $_GET['topright'] == no) ? false : true; // Top-right rounded corner is shown by default$imagetype=strtolower($_GET['imagetype']);$backcolor=$_GET['backcolor'];$endsize=$corner_radius;$startsize=$endsize*3-1;$arcsize=$startsize*2 1;if (($imagetype=='jpeg') or ($imagetype=='jpg')) {$image = imagecreatefromjpeg($image_file);} else {if (($imagetype=='GIF') or ($imagetype=='gif')) {$image = imagecreatefromgif($image_file);} else {$image = imagecreatefrompng($image_file);}}$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,$bg);}// Bottom-left cornerif ($bottomleft == true) {imagearc($im_temp,$startsize,$starty-$startsize,$arcsize,$arcsize,90,180,$bg);imagefilltoborder($im_temp,0,$starty,$bg,$bg);}// Bottom-right cornerif ($bottomright == true) {imagearc($im_temp, $startx-$startsize, $starty-$startsize,$arcsize, $arcsize, 0,90,$bg);imagefilltoborder($im_temp,$startx,$starty,$bg,$bg);}// Top-right cornerif ($topright == true) {imagearc($im_temp, $startx-$startsize, $startsize,$arcsize, $arcsize, 270,360,$bg);imagefilltoborder($im_temp,$startx,0,$bg,$bg);}$newimage = imagecreatetruecolor($size[0],$size[1]);imagecopyresampled($image,$im_temp,0,0,0,0,$size[0],$size[1],$startx,$starty);// Output final imageheader(Content-type: image/png);imagepng($image);imagedestroy($image);imagedestroy($background);imagedestroy($im_temp);?