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Homephp教程php手册PHP使用phpqrcode生成带LOGO图像的二维码

PHP使用phpqrcode生成带LOGO图像的二维码,使用起来很方便,代码中含生成不带Logo的标准二维码和生成带Logo的二维码,可根据注释修改使用。 qrcode ?phpinclude ('phpqrcode.php');$value = 'http://www.codesc.net';//二维码数据$errorCorrectionLevel = 'L'

PHP使用phpqrcode生成带LOGO图像的二维码,使用起来很方便,代码中含 生成不带Logo的标准二维码和生成带Logo的二维码,可根据注释修改使用。 qrcode
<?php
include ('phpqrcode.php');
$value = 'http://www.codesc.net';//二维码数据
$errorCorrectionLevel = 'L';//纠错级别:L、M、Q、H
$matrixPointSize = 10;//二维码点的大小:1到10
QRcode::png ( $value, 'ewm.png', $errorCorrectionLevel, $matrixPointSize, 2 );//不带Logo二维码的文件名
echo "二维码已生成" . "<br />";
$logo = 'emwlogo.gif';//需要显示在二维码中的Logo图像
$QR = 'ewm.png';
if ($logo !== FALSE) {
    $QR = imagecreatefromstring ( file_get_contents ( $QR ) );
    $logo = imagecreatefromstring ( file_get_contents ( $logo ) );
    $QR_width = imagesx ( $QR );
    $QR_height = imagesy ( $QR );
    $logo_width = imagesx ( $logo );
    $logo_height = imagesy ( $logo );
    $logo_qr_width = $QR_width / 5;
    $scale = $logo_width / $logo_qr_width;
    $logo_qr_height = $logo_height / $scale;
    $from_width = ($QR_width - $logo_qr_width) / 2;
    imagecopyresampled ( $QR, $logo, $from_width, $from_width, 0, 0, $logo_qr_width, $logo_qr_height, $logo_width, $logo_height );
}
imagepng ( $QR, 'ewmlogo.png' );//带Logo二维码的文件名
?>
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