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【imagecolorset】qrcode生成二维码后，想把黑色二维码改成蓝色

WBOY
WBOYOriginal
2016-06-20 12:43:582316browse

如题，我用qrcode生成一张二维码图片，然后想把黑色二维码修改为蓝色二维码，背景色不变。 

<?phpinclude "../qijiang/phpqrcode.php";if(isset($_POST['addSub']) && $_POST['addSub'] =='生成二维码'){$url="BEGIN:VCARDVERSION:3.0FN:".$_POST['chineseName']."NICKNAME:".$_POST['englishName']."ORG:".$_POST['companyName']."TITLE:TEL;TYPE=work:".$_POST['officeTel']."TEL:".$_POST['tel']."EMAIL:".$_POST['mail']."END:VCARD";  $filename_temp ="card.png";  $errorCorrectionLevel = 'L';  $matrixPointSize = 2;  QRcode::png($url, $filename_temp, $errorCorrectionLevel, $matrixPointSize,4);$img = file_get_contents('card.png');$im = imagecreatefromstring($img);$indexColor=imagecolorexact($im,0,0,0);//echo "<script language='javascript'>alert('".$indexColor."');</script>";imagecolorset($im,$indexColor,0,0,255);  echo "<img  src=\"card.png\" alt="【imagecolorset】qrcode生成二维码后，想把黑色二维码改成蓝色" ><br/>";}?>


结果输出的card.php依旧是黑色的，求救。


回复讨论(解决方案)

求救，新手。

已解决，忘保存这个图片了，唉。

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