Php text watermark and php image watermark code example

Php text watermark and php image watermark code example

$ Dst_path = 'dst.jpg '; // Create an image instance $ Dst = imagecreatefromstring (file_get_contents ($ dst_path )); // Text $ Font = './simsun. ttc'; // font $ Black = imagecolorallocate ($ dst, 0x00, 0x00, 0x00); // font color Imagefttext ($ dst, 13, 0, 20, 20, $ black, $ font, 'Happy Project '); // Output image List ($ dst_w, $ dst_h, $ dst_type) = getimagesize ($ dst_path ); Switch ($ dst_type ){ Case 1: // GIF Header ('content-Type: image/gif '); Imagegif ($ dst ); Break; Case 2: // JPG Header ('content-Type: image/jpeg '); Imagejpeg ($ dst ); Break; Case 3: // PNG Header ('content-Type: image/png '); Imagepng ($ dst ); Break; Default: Break; } Imagedestroy ($ dst ); Example 2,Php image watermarkImage watermark: adds an image to another image. it mainly uses imagecopy and imagecopymerge of the gd Library. : Code: $ Dst_path = 'dst.jpg '; $ Src_path = 'src.jpg '; // Create an image instance $ Dst = imagecreatefromstring (file_get_contents ($ dst_path )); $ Src = imagecreatefromstring (file_get_contents ($ src_path )); // Obtain the width and height of the watermark image List ($ src_w, $ src_h) = getimagesize ($ src_path ); // Copy the watermark image to the target image. the last parameter 50 is to set transparency. The transparency is achieved here. Imagecopymerge ($ dst, $ src, 10, 10, 0, 0, $ src_w, $ src_h, 50 ); // If the watermark image is transparent, use the imagecopy method. // Imagecopy ($ dst, $ src, 10, 10, 0, 0, $ src_w, $ src_h ); // Output image List ($ dst_w, $ dst_h, $ dst_type) = getimagesize ($ dst_path ); Switch ($ dst_type ){ Case 1: // GIF Header ('content-Type: image/gif '); Imagegif ($ dst ); Break; Case 2: // JPG Header ('content-Type: image/jpeg '); Imagejpeg ($ dst ); Break; Case 3: // PNG Header ('content-Type: image/png '); Imagepng ($ dst ); Break; Default: Break; } Imagedestroy ($ dst ); Imagedestroy ($ src );