php生成二维码(调用google接口)

<?php

$data = isset($_GET['t']) ? $_GET['t'] : 'http://www.XXX.com';

$size = isset($_GET['size']) ? $_GET['size'] : '150x150';

$logo = isset($_GET['logo']) ? $_GET['logo'] :"./image/logo.jpg";

$chl = urlencode($logo);

$png = "http://chart.googleapis.com/chart?chs=$size&cht=qr&chl=$chl&chld=L|1&choe=UTF-8";

$QR = imagecreatefrompng($png);//外面那QR图

if ($logo !== FALSE) {

  $logo = imagecreatefromstring(file_get_contents($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);

}

header('Content-type: image/png');

imagepng($QR);
imagedestroy($QR);

?>