yii 整合phpqrcode生成二维码附在线演示地址，yiiphpqrcode_PHP教程

yii 整合phpqrcode生成二维码附在线演示地址，yiiphpqrcode

1，先到官网下载包  http://phpqrcode.sourceforge.net/

下载官网提供的类库后，只需要使用phpqrcode.php就可以生成二维码了，当然您的PHP环境必须开启支持GD2。

phpqrcode.php提供了一个关键的png()方法，其中
参数$text表示生成二位的的信息文本；
参数$outfile表示是否输出二维码图片 文件，默认否；
参数$level表示容错率，也就是有被覆盖的区域还能识别，分别是 L（QR_ECLEVEL_L，7%），M（QR_ECLEVEL_M，15%），Q（QR_ECLEVEL_Q，25%），H（QR_ECLEVEL_H，30%）； 
参数$size表示生成图片大小，默认是3；参数$margin表示二维码周围边框空白区域间距值；
参数$saveandprint表示是否保存二维码并显示。

2，下载后把解压后的phpqrcode文件夹放到extensions文件夹下，如下图：

3，引入类 phpqrcode

Yii::$enableIncludePath = false;
Yii::import ('application.extensions.phpqrcode.phpqrcode', 1 );

下面是完整的生成二维码的方法

public function actionQrcode(){
		$this->breadcrumbs=array_merge($this->breadcrumbs,array(
				'生成二维码'
		));
		$qrcode_path='';
		$file_tmp_name='';
		$errors=array();
		if(!empty($_POST)){
			$content = trim($_POST['content']); //二维码内容
			$contentSize=$this->getStringLength($content);
			if($contentSize>290){
				$errors[]='字数过长，不能多于150个字符！';
			}
			Yii::$enableIncludePath = false;
			Yii::import ('application.extensions.phpqrcode.phpqrcode', 1 );
			if(isset($_FILES['upimage']['tmp_name']) && $_FILES['upimage']['tmp_name'] && is_uploaded_file($_FILES['upimage']['tmp_name'])){
				if($_FILES['upimage']['size']>512000){
					$errors[]="你上传的文件过大，最大不能超过500K。";
				}
				$file_tmp_name=$_FILES['upimage']['tmp_name'];
				$fileext = array("image/pjpeg","image/jpeg","image/gif","image/x-png","image/png");
				if(!in_array($_FILES['upimage']['type'],$fileext)){
					$errors[]="你上传的文件格式不正确，仅支持 png, jpg, gif格式。";
				}
			}
			$tpgs=$_POST['tpgs'];//图片格式
			$bas_path=dirname ( Yii::app ()->BasePath );
			$qrcode_bas_path=$bas_path.'/upload/qrcode/';
			if(!is_dir($qrcode_bas_path)){
				mkdir($qrcode_bas_path, 0777, true);
			}
			$uniqid_rand=date("Ymdhis").uniqid(). rand(1,1000);
			$qrcode_path=$qrcode_bas_path.$uniqid_rand. "_1.".$tpgs;
			$qrcode_path_new=$qrcode_bas_path.$uniqid_rand."_2.".$tpgs;
			if(Helper::getOS()=='Linux'){

				$mv = move_uploaded_file($file_tmp_name, $qrcode_path);
			}else{
				//解决windows下中文文件名乱码的问题
				$save_path = Helper::safeEncoding($qrcode_path,'GB2312');
				if(!$save_path){
					$errors[]='上传失败，请重试！';
				}
				$mv = move_uploaded_file($file_tmp_name, $qrcode_path);
			}
			if(empty($errors)){
				$errorCorrectionLevel = $_POST['errorCorrectionLevel'];//容错级别
				$matrixPointSize = $_POST['matrixPointSize'];//生成图片大小
				$matrixMarginSize = $_POST['matrixMarginSize'];//边距大小
				//生成二维码图片
				QRcode::png($content,$qrcode_path_new, $errorCorrectionLevel, $matrixPointSize, $matrixMarginSize);
				$QR = $qrcode_path_new;//已经生成的原始二维码图
				$logo = $qrcode_path;//准备好的logo图片
				if (file_exists($logo)) {
					$QR = imagecreatefromstring(file_get_contents($QR));
					$logo = imagecreatefromstring(file_get_contents($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, $logo_height);
					//输出图片
// 					header("Content-type: image/png");
					imagepng($QR,$qrcode_path);
					imagedestroy($QR);
				}else{
					$qrcode_path=$qrcode_path_new;
				}
				$qrcode_path=str_replace($bas_path,'', $qrcode_path);
			}else{
				$qrcode_path='';
			}
		}
		$data=array('data'=>array('errors'=>$errors,'qrcode_path'=>$qrcode_path));
		$this->render ( 'qrcode',$data);
	}

前台的上传界面：

<?php
$vars = get_defined_vars ();
$data = $vars ['data'];
$content=Yii::app ()->request->hostInfo;
$matrixPointSize=6;
$matrixMarginSize=2;
$errorCorrectionLevel='M';
$tpgs='gif';
if(!empty($_POST)){
	$content=$_POST['content'];
	$matrixPointSize=$_POST['matrixPointSize'];
	$matrixMarginSize=$_POST['matrixMarginSize'];
	$errorCorrectionLevel=$_POST['errorCorrectionLevel'];
	$tpgs=$_POST['tpgs'];
}

$arrayCorrectionLevel=array('L'=>'L - Low (7%)','M'=>'M - Medium (15%)','Q'=>'Q - Quartile (25%)','H'=>'H - High (30%)');
$arrayTpgs=array('gif'=>'gif格式','png'=>'png格式','jpg格式');
?>
<div class="col-md-12">
	<div class="form-horizontal panel panel-default margin-t-10 b-img">
		<div class="panel-heading">
			<div class="pull-left">
				<span class="g-bg glyphicon glyphicon-wrench margin-r-2"
					aria-hidden="true"></span>在线生成二维码
			</div>
			<div class="clearfix"></div>
		</div>
<?php
$form = $this->beginWidget ( 'CActiveForm', array (
		'id' => 'qrcode-form',
		'htmlOptions' => array (
				'id' => 'view_table',
				'class' => 'add-form padding-10',
				'enctype' => 'multipart/form-data'
		),
		'enableAjaxValidation' => false
) );
?>
	<div class="form-group">
			<label class="col-lg-2 control-label">尺寸大小</label>
			<div class="col-lg-3">
				<select class="form-control" id="matrixPointSize"
					name="matrixPointSize">
					<?php for ($i=1;$i<21;$i++):?>
                        <option value="<?php echo $i;?>" <?php echo $i==$matrixPointSize?'selected':'';?>><?php echo $i;?></option>
                    <?php endfor;?>
                	</select>
			</div>
		</div>
		<div class="form-group">
			<label class="col-lg-2 control-label">边距大小</label>
			<div class="col-lg-3">
				<select class="form-control" id="matrixMarginSize"
					name="matrixMarginSize">
					<?php for ($i=0;$i<21;$i++):?>
                        <option value="<?php echo $i;?>" <?php echo $i==$matrixMarginSize?'selected':'';?>><?php echo $i;?></option>
                    <?php endfor;?>
                </select>
			</div>
		</div>
		<div class="form-group">
			<label class="col-lg-2 control-label">容错级别</label>
			<div class="col-lg-3">
			<?php echo CHtml::dropDownList('errorCorrectionLevel',$errorCorrectionLevel, $arrayCorrectionLevel,array('class'=>'form-control'));?>
			</div>
		</div>
		<div class="form-group">
			<label class="col-lg-2 control-label">保存格式</label>
			<div class="col-lg-3">
			<?php echo CHtml::dropDownList('tpgs',$tpgs, $arrayTpgs,array('class'=>'form-control'));?>
			</div>
		</div>
		<div class="form-group">
			<label class="col-lg-2 control-label">二维码内容</label>
			<div class="col-lg-5">
				<?php echo CHtml::textField('content',$content,array('class'=>'form-control','maxlength'=>150));?>
			</div>
		</div>
		<div class="form-group">
			<label class="col-lg-2 control-label">二维码logo图片</label>
			<div class="col-lg-5">
				<div class="col-md-6">
						<input id="upimage" type="file" name="upimage" class="hidden">
						<input id="tmp_file" class="form-control" type="text" value="gif，png，jpg">
					</div>
				<div class="col-md-6"><a class="btn btn-default" onclick="$('input[id=upimage]').click();">选择文件</a></div>
			</div>
		</div>
		<div class="list_back">
			<input type="submit" value="生成二维码" class="btn btn-success">
		</div>
	</div>
<?php $this->endWidget(); ?>
	<div class="panel panel-default margin-t-10 b-img">
		<div class="panel-heading">
			<span class="g-bg glyphicon glyphicon-wrench margin-r-2" aria-hidden="true"></span>二维码
		</div>
		<div class="panel-body">
		<?php if(empty($_POST)):?>
		<?php echo CHtml::image('/static/tool/qrcode/qrcode.gif','二维码');?>
		<?php endif;?>
		<?php if(!empty($data['errors'])):?>
			<label class="col-lg-2 text-right">生成失败</label>
			<div class="col-lg-5">
			<?php foreach ($data['errors'] as $e):?>
			<?php echo $e;?><br>
			<?php endforeach;?>
			</div>
		<?php endif;?>
		<?php if(!empty($data['qrcode_path'])):?>
			<?php echo CHtml::image($data['qrcode_path'],'二维码');?>
			<a class="btn btn-success color-f" href="<?php echo $data['qrcode_path'];?>" target="_blank"><span aria-hidden="true" class="glyphicon glyphicon-download-alt margin-r-2"></span>右键另存为二维码</a>
		<?php endif;?>
		</div>
	</div>
<?php $this->renderPartial('/component/duoshuo_common');?>
</div>

如图：

 

演示地址

 

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