php生成名片（vcard）二维码：

<?php
$vname = 'test';  
$vtel = '13800000000';  
generateQRfromGoogle($vname,$vtel);

function generateQRfromGoogle($vname,$vtel,$widhtHeight ='150',$EC_level='L',$margin='0')
{
    if($vname&&$vtel){  
       $chl = "BEGIN:VCARD\nVERSION:3.0". //vcard头信息  
       "\nFN:$vname".  
       "\nTEL:$vtel".  
       "\nEND:VCARD"; //vcard尾信息  
       echo '<img src="http://chart.apis.google.com/chart?chs='.$widhtHeight.'x'.$widhtHeight.'&cht=qr&chld='.$EC_level.'|'.$margin.'&chl='.urlencode($chl).'" alt="QR code" widhtHeight="'.$size.'" widhtHeight="'.$size.'"/>';
    }
}
?>

php生成网址二维码：

<?php
$url = "http://www.google.com.hk"; 
generateQRfromGoogle($url);

function generateQRfromGoogle($chl,$widhtHeight ='150',$EC_level='L',$margin='0')
{
       echo '<img src="http://chart.apis.google.com/chart?chs='.$widhtHeight.'x'.$widhtHeight.'&cht=qr&chld='.$EC_level.'|'.$margin.'&chl='.urlencode($chl).'" alt="QR code" widhtHeight="'.$size.'" widhtHeight="'.$size.'"/>';
}
?>