making QR code image in php by using the Google_API

QRcode Means:-

 QR Code is a matrix code in the image format or (its a 2D bar code) invented by Japanese corporation Denso Wave in the year 1993-1994. The "Q.R" is derived from the word "Quick_Responce", as the creator intended the code to allow its data is to be decoded at very high speed.

Now a days all the smart phones having the QR Code applications Like (Android smart phones)


Generating the QR Code image with PHP by Using the Google API

<?
$urlToEncode="littlebitjohnny.blogspot.com";//here littlebitjohnny.blogspot.com is text
generateQRwithGoogle($urlToEncode); //Function
function generateQRwithGoogle($url,$widthHeight ='150',$EC_level='L',$margin='0') {
    $url = urlencode($url);
    echo '<img src="http://chart.apis.google.com/chart?chs='.$widthHeight.

'x'.$widthHeight.'&cht=qr&chld='.$EC_level.'|'.$margin.

'&chl='.$url.'" alt="QR code" widthHeight="'.$widthHeight.

'" widthHeight="'.$widthHeight.'"/>';//the image tag to be displayed after encoding
}
?>