PHP two-dimensional code plus watermark image

Source: Internet
Author: User

$logo = ' logo.png ';

if (Is_file ($logo))


$QR = imagecreatefromstring (file_get_contents ($filename));

$logo = imagecreatefromstring (file_get_contents ($logo));

$QR _width = Imagesx ($QR);

$QR _height = Imagesy ($QR);

$logo _width = Imagesx ($logo);

$logo _height = Imagesy ($logo);

$logo _qr_width = $QR _width/5;

$scale = $logo _width/$logo _qr_width;

$logo _qr_height = $logo _height/$scale;

$from _width = ($QR _width-$logo _qr_width)/2;

Imagecopyresampled ($QR, $logo, $from _width, $from _width, 0, 0, $logo _qr_width, $logo _qr_height, $logo _width, $logo _ height);

Imagepng ($QR, $filename);


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