php使用qr生成二维码的示例分享

<?php 
ini_set(display_errors, on); 
$PNG_TEMP_DIR = dirname(__FILE__).DIRECTORY_SEPARATOR.temp.DIRECTORY_SEPARATOR; 
$PNG_WEB_DIR = temp/; 

include "qrlib.php";    // QRcode lib 

$data = http://www.jb51.net; // data 
$ecc = H; // L-smallest, M, Q, H-best 
$size = 10; // 1-50 

$filename = $PNG_TEMP_DIR.qrcode_.time()..png; 
QRcode::png($data, $filename, $ecc, $size, 2); 
chmod($filename, 0777); 
echo <img src=".$PNG_WEB_DIR.basename($filename)." />; 
?>