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yii+phpqrcode生成二维码实例

WBOY
WBOYOriginal
2016-06-08 17:19:501427browse

phpqrcode是一个php生成二维码的类库，我们可以利用他轻松生成二维码，本文我们来看看用yii如何整合phpqrcode生成二维码的。

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以前我们讲过一些关于用phpqrcode生成二维码的文章，下面我们先列出来

php利用PHP QR Code生成二维码(带logo)

PHP生成二维码(使用PHP QR Code二维码生成类库)

利用phpqrcode生成二维码实例代码

超简单PHP生成二维码实例


下面我们来讲讲yii整合phpqrcode生成二维码的实例。


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(
                &#39;生成二维码&#39;
        ));
        $qrcode_path=&#39;&#39;;
        $file_tmp_name=&#39;&#39;;
        $errors=array();
        if(!empty($_POST)){
            $content = trim($_POST[&#39;content&#39;]); //二维码内容
            $contentSize=$this->getStringLength($content);
            if($contentSize>290){
                $errors[]=&#39;字数过长，不能多于150个字符！&#39;;
            }
            Yii::$enableIncludePath = false;
            Yii::import (&#39;application.extensions.phpqrcode.phpqrcode&#39;, 1 );
            if(isset($_FILES[&#39;upimage&#39;][&#39;tmp_name&#39;]) && $_FILES[&#39;upimage&#39;][&#39;tmp_name&#39;] && is_uploaded_file($_FILES[&#39;upimage&#39;][&#39;tmp_name&#39;])){
                if($_FILES[&#39;upimage&#39;][&#39;size&#39;]>512000){
                    $errors[]="你上传的文件过大，最大不能超过500K。";
                }
                $file_tmp_name=$_FILES[&#39;upimage&#39;][&#39;tmp_name&#39;];
                $fileext = array("image/pjpeg","image/jpeg","image/gif","image/x-png","image/png");
                if(!in_array($_FILES[&#39;upimage&#39;][&#39;type&#39;],$fileext)){
                    $errors[]="你上传的文件格式不正确，仅支持 png, jpg, gif格式。";
                }
            }
            $tpgs=$_POST[&#39;tpgs&#39;];//图片格式
            $bas_path=dirname ( Yii::app ()->BasePath );
            $qrcode_bas_path=$bas_path.&#39;/upload/qrcode/&#39;;
            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()==&#39;Linux&#39;){
 
                $mv = move_uploaded_file($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,&#39;GB2312&#39;);
                if(!$save_path){
                    $errors[]=&#39;上传失败，请重试！&#39;;
                }
                $mv = move_uploaded_file($file_tmp_name, $qrcode_path);
            }
            if(empty($errors)){
                $errorCorrectionLevel = $_POST[&#39;errorCorrectionLevel&#39;];//容错级别
                $matrixPointSize = $_POST[&#39;matrixPointSize&#39;];//生成图片大小
                $matrixMarginSize = $_POST[&#39;matrixMarginSize&#39;];//边距大小
                //生成二维码图片
                QRcode::png($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,&#39;&#39;, $qrcode_path);
            }else{
                $qrcode_path=&#39;&#39;;
            }
        }
        $data=array(&#39;data&#39;=>array(&#39;errors&#39;=>$errors,&#39;qrcode_path&#39;=>$qrcode_path));
        $this->render ( &#39;qrcode&#39;,$data);
    }


前台的上传界面：

<?php
$vars = get_defined_vars ();
$data = $vars [&#39;data&#39;];
$content=Yii::app ()->request->hostInfo;
$matrixPointSize=6;
$matrixMarginSize=2;
$errorCorrectionLevel=&#39;M&#39;;
$tpgs=&#39;gif&#39;;
if(!empty($_POST)){
    $content=$_POST[&#39;content&#39;];
    $matrixPointSize=$_POST[&#39;matrixPointSize&#39;];
    $matrixMarginSize=$_POST[&#39;matrixMarginSize&#39;];
    $errorCorrectionLevel=$_POST[&#39;errorCorrectionLevel&#39;];
    $tpgs=$_POST[&#39;tpgs&#39;];
}
 
$arrayCorrectionLevel=array(&#39;L&#39;=>&#39;L - Low (7%)&#39;,&#39;M&#39;=>&#39;M - Medium (15%)&#39;,&#39;Q&#39;=>&#39;Q - Quartile (25%)&#39;,&#39;H&#39;=>&#39;H - High (30%)&#39;);
$arrayTpgs=array(&#39;gif&#39;=>&#39;gif格式&#39;,&#39;png&#39;=>&#39;png格式&#39;,&#39;jpg格式&#39;);
?>
<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 = $this->beginWidget ( &#39;CActiveForm&#39;, array (
        &#39;id&#39; => &#39;qrcode-form&#39;,
        &#39;htmlOptions&#39; => array (
                &#39;id&#39; => &#39;view_table&#39;,
                &#39;class&#39; => &#39;add-form padding-10&#39;,
                &#39;enctype&#39; => &#39;multipart/form-data&#39;
        ),
        &#39;enableAjaxValidation&#39; => false
) );
?>
    <div class="form-group">
            <label class="col-lg-2 control-label">尺寸大小</label>
            <div class="col-lg-3">
                <select class="form-control" id="matrixPointSize"
                    name="matrixPointSize">
                    <?php for ($i=1;$i<21;$i++):?>
                        <option value="<?php echo $i;?>" <?php echo $i==$matrixPointSize?&#39;selected&#39;:&#39;&#39;;?>><?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?&#39;selected&#39;:&#39;&#39;;?>><?php echo $i;?></option>
                    <?php endfor;?>
                </select>
            </div>
        </div>
        <div class="form-group">
            <label class="col-lg-2 control-label">容错级别</label>
            <div class="col-lg-3">
            <?php echo CHtml::dropDownList(&#39;errorCorrectionLevel&#39;,$errorCorrectionLevel, $arrayCorrectionLevel,array(&#39;class&#39;=>&#39;form-control&#39;));?>
            </div>
        </div>
        <div class="form-group">
            <label class="col-lg-2 control-label">保存格式</label>
            <div class="col-lg-3">
            <?php echo CHtml::dropDownList(&#39;tpgs&#39;,$tpgs, $arrayTpgs,array(&#39;class&#39;=>&#39;form-control&#39;));?>
            </div>
        </div>
        <div class="form-group">
            <label class="col-lg-2 control-label">二维码内容</label>
            <div class="col-lg-5">
                <?php echo CHtml::textField(&#39;content&#39;,$content,array(&#39;class&#39;=>&#39;form-control&#39;,&#39;maxlength&#39;=>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="$(&#39;input[id=upimage]&#39;).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(&#39;/static/tool/qrcode/qrcode.gif&#39;,&#39;二维码&#39;);?>
        <?php endif;?>
        <?php if(!empty($data[&#39;errors&#39;])):?>
            <label class="col-lg-2 text-right">生成失败</label>
            <div class="col-lg-5">
            <?php foreach ($data[&#39;errors&#39;] as $e):?>
            <?php echo $e;?><br>
            <?php endforeach;?>
            </div>
        <?php endif;?>
        <?php if(!empty($data[&#39;qrcode_path&#39;])):?>
            <?php echo CHtml::image($data[&#39;qrcode_path&#39;],&#39;二维码&#39;);?>
            <a class="btn btn-success color-f" href="<?php echo $data[&#39;qrcode_path&#39;];?>" 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(&#39;/component/duoshuo_common&#39;);?>
</div>


如图：

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