/**
* 生成二维码
* @param unknown $string 内容
* @param array $coifig 配置参数
*/
function build_QRcode($string, $config = array()){
$basedir = dirname($_SERVER['SCRIPT_FILENAME']).'/';
$url = 'public/images/QRcode/';
$config += array(
'filedir' => $basedir.$url,
'webdir' => '/'.$url,
'logo' => '',
'filename'=> null,
'level' => 'H',
'size' => 5,
);
if (!file_exists($config['filedir'])) mkdir($config['filedir']);
if(!empty($config['logo']) && !file_exists($config['logo'])){
$config['logo'] = $basedir.$config['logo'];
file_exists($config['logo']) || $config['logo'] = '';
}
//图片级别
if(!in_array($config['level'], array('L','M','Q','H'))) $config['level'] = 'H';
$config['size'] = min(max($config['size'], 1), 10);
include_once('phpqrcode/qrlib.php');
if($config['filename'] === null || !empty($config['logo'])){
ob_start();
QRcode::png($string, false, $config['level'], $config['size'], 2);
$imgContent = ob_get_contents();
ob_end_clean();
}elseif($config['filename'] === ''){
$config['filename'] = $config['filedir'].md5($_REQUEST['data'].'|'.$config['level'].'|'.$config['size']).'.png';
QRcode::png($string, $config['filename'], $config['level'], $config['size'], 2);
$imgContent = file_get_contents($config['filename']);
}
//如果带有logo
if(!empty($config['logo'])){
$QR = imagecreatefromstring($imgContent);
$logo = imagecreatefromstring(file_get_contents($config['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, $config['filename']);
}
if(!empty($config['filename'])) return $config['webdir'].basename($config['filename']);
}中间带logo都是后期处理的,这个是我不带满意的,不过又没有办法.. 最佳答案
