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yii 整合phpqrcode生成二维码附在线演示地址

作者:shouce.ren  发布日期:2015-11-12 20:39:07
Tag标签:二维码  地址  
  • 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:

     

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