Este es el codigo
Código PHP:
<?php
$juego = $_POST['nombre'];
$corner_radius = isset($_GET['radius']) ? $_GET['radius'] : 10; // 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
$corner_source = imagecreatefrompng('http://www.assemblysys.com/dataServices/images/rounded_corner.png');
$corner_width = imagesx($corner_source);
$corner_height = imagesy($corner_source);
$corner_resized = ImageCreateTrueColor($corner_radius, $corner_radius);
ImageCopyResampled($corner_resized, $corner_source, 0, 0, 0, 0, $corner_radius, $corner_radius, $corner_width, $corner_height);
$corner_width = imagesx($corner_resized);
$corner_height = imagesy($corner_resized);
$image = imagecreatetruecolor($corner_width, $corner_height);
$image = imagecreatefromjpeg($juego);
$size = getimagesize($juego);
// Top-left corner
$dest_x = 0;
$dest_y = 0;
imagealphablending($image, false);
imagesavealpha($image, true);
imagecopymerge($image, $corner_resized, $dest_x, $dest_y, 0, 0, $corner_width, $corner_height, 100);
$dest_x = 0;
$dest_y = $size[1] - $corner_height;
$rotated = imagerotate($corner_resized, 90, 0);
imagecopymerge($image, $rotated, $dest_x, $dest_y, 0, 0, $corner_width, $corner_height, 100);
$dest_x = $size[0] - $corner_width;
$dest_y = $size[1] - $corner_height;
$rotated = imagerotate($corner_resized, 180, 0);
imagecopymerge($image, $rotated, $dest_x, $dest_y, 0, 0, $corner_width, $corner_height, 100);
$dest_x = $size[0] - $corner_width;
$dest_y = 0;
$rotated = imagerotate($corner_resized, 270, 0);
imagecopymerge($image, $rotated, $dest_x, $dest_y, 0, 0, $corner_width, $corner_height, 100);
imagealphablending($image, false);
imagesavealpha($image, true);
imagepng($image, "cov.png");
?>
<img src="cov.png"/>