Php uploads images and sets the transparent image watermark effect

Php uploads images and sets the transparent image watermark effect

$ Im = imagecreatefromjpeg ($ _ file ["upload"] ["tmp_name"]); // Picture $ Watermark = imagecreatefrompng ("Smiley.png"); // watermark image path $ Im_x = imagesx ($ im ); $ Im_y = imagesy ($ im ); $ W_x = imagesx ($ watermark ); $ W_y = imagesy ($ watermark ); Imagecopy ($ im, $ watermark, $ im_x-$ w_x, $ im_y-$ w_y, 0, 0, $ w_x, $ w_y ); Imagejpeg ($ im); // you can add a path to save the watermark image. // Determine the slice type using type // Switch ($ _ file ["upload"] ["type"]) // Case: 1 // Other gd library functions // Imagejpeg () corresponds to jpeg // Imagegif () corresponds to gif // Imagepng () corresponds to png Imagedestroy ($ im );