yii 整合phpqrcode生成二维码附在线演示地址

2020-03-22 19:49:18

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来源：转载

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1，先到网址下载包 http://phpqrcode.sourceforge.net/

下载网址提供的类库后，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

html' target='_blank'>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：