12 生成二维码

function qr_code($data, $type = "TXT", $size = '150', $ec = 'L', $margin = '0')
{
　　$types = array("URL" => "http://", "TEL" => "TEL:", "TXT" => "", "EMAIL" => "MAILTO:");
　　if (!in_array($type, array("URL", "TEL", "TXT", "EMAIL"))) {
　　　　$type = "TXT";
　　}
　　if (!preg_match('/^' . $types[$type] . '/', $data)) {
　　　　$data = str_replace("\\", "", $types[$type]) . $data;
　　}
　　$ch = curl_init();
　　$data = urlencode($data);
　　curl_setopt($ch, CURLOPT_URL, 'http://chart.apis.google.com/chart');
　　curl_setopt($ch, CURLOPT_POST, true);
　　curl_setopt($ch, CURLOPT_POSTFIELDS, 'chs=' . $size . 'x' . $size . '&cht=qr&chld=' . $ec . '|' . $margin . '&chl=' . $data);
　　curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
　　curl_setopt($ch, CURLOPT_HEADER, false);
　　curl_setopt($ch, CURLOPT_TIMEOUT, 30);
　　$response = curl_exec($ch);
　　curl_close($ch);
　　return $response;
}