php生成二维码

1.浏览器直接输出

define('PATH',dirname(__FILE__));
	include_once PATH."/phpqrcode/phpqrcode.php";
	$value = 'http://www.baidu.com';
	$errorCorrectionLevel = "1";
	$matrixPointSize = "4";
	$src = '1.png';
	QRcode::png($value, false, $errorCorrectionLevel, $matrixPointSize);

2.生成二维码文件

define('PATH',dirname(__FILE__));
	include_once PATH."/phpqrcode/phpqrcode.php";
	$value = 'http://www.baidu.com';
	$errorCorrectionLevel = "1";
	$matrixPointSize = "4";
	$src = '1.png';
	QRcode::png($value, $src, $errorCorrectionLevel, $matrixPointSize);

3.生成带logo的二维码

define('PATH',dirname(__FILE__));
	include_once PATH."/phpqrcode/phpqrcode.php";
	$value = 'http://www.baidu.com';
	$errorCorrectionLevel = "1";
	$matrixPointSize = "4";
	$src = '1.png';
	QRcode::png($value, $src, $errorCorrectionLevel, $matrixPointSize);
	$logo = "./temp/gold_icon.png";
	if ($logo !== FALSE) 
	{
		//生成附带logo的二维码
		$QR = imagecreatefromstring(file_get_contents($src));
		$logo = imagecreatefromstring(file_get_contents($logo));
		$QR_width = imagesx($QR);//二维码图片宽度
		$QR_height = imagesy($QR);//二维码图片高度
		$logo_width = imagesx($logo);//logo图片宽度
		$logo_height = imagesy($logo);//logo图片高度
		$logo_qr_width = $QR_width / 5;
		$scale = $logo_width/$logo_qr_width;
		$logo_qr_height = $logo_height/$scale;
		$from_width = ($QR_width - $logo_qr_width) / 2;
		 //重新组合图片并调整大小
		imagecopyresampled($QR, $logo, $from_width, $from_width, 0, 0, $logo_qr_width,
			 $logo_qr_height, $logo_width, $logo_height);
	 }
ImagePng($QR, $src);

具体代码http://download.youkuaiyun.com/detail/hjt321658/8266475