在zend框架中导出csv

Question

我正在尝试将数据库表导出为可从浏览器下载的.csv。 我的代码是基于zend框架的，我几乎有以下操作：

public function exportTableAction()
{
    $this->_helper->layout->disableLayout();
    $this->_helper->viewRenderer->setNoRender();

    $fileName = $this->_getParam('fileName');
    $tableName = $this->_getParam('tableName');       

    header('Content-type: application/octet-stream');
    header('Content-Disposition: attachment; filename="'.$fileName.'"');

    echo $this->getCsv($tableName, $fileName);
}

我可以下载包含有效数据的.csv文件。 但是，即使我禁用了布局和渲染器，我仍然可以在我的.csv文件末尾获得页面，侧边栏和页脚的输出。 有没有办法禁用除exportTableAction中生成的html输出之外的任何html输出？ 或者我可以以不同的方式将标头信息和csv字符串发送到浏览器吗？

顺便说一句：我正在使用动作堆栈插件来帮助我呈现标题和侧边栏，如下所示：

...
$actionStack = $front->getPlugin('Zend_Controller_Plugin_ActionStack');
$actionStack->pushStack($userlogAction);
$actionStack->pushStack($rightcolAction);

干杯，阿德里安

Answer 1

我们找到了解决问题的方法。 我替换了以下行

$this->_helper->viewRenderer->setNoRender();

通过

$this->_helper->viewRenderer->setNeverRender();

如果使用setNeverRender（），则不会呈现任何视图（也不会从插件中）。

Answer 2

您可以使用contextSwitch动作帮助程序。

public $contexts = array(
    'test'     => array('csv')
);

public function testAction()
{
    $filename = time() . '.csv';
    $this->_helper->contextSwitch()->addContext('csv',
            array('suffix' => 'csv',
                  'headers' => array('Content-Type' => 'application/csv',
                                     'Content-Disposition' => 'attachment; filename="'. $filename.'"')))->initContext('csv');
    ........................
    ........................
}

Answer 3

$this->_helper->viewRenderer->setNoRender();
$this->view->layout()->disableLayout();

$response = $this->getResponse();
$response->setHeader('Content-type', 'application/octet-stream');
$response->setHeader('Content-Disposition', 'attachment; filename="contatos.csv"');

echo $your_csv_content;

Answer 4

public function getCsv($tableName, $fileName)
{   
    $content = new $tableName();

    $content_arr = array();     
    $content_arr = $content->fetchAll('1=1','id ASC');

    $csv_terminated = "\n";
    $csv_separator = ",";
    $csv_enclosed = '"';
    $csv_escaped = "\\";        

    $schema_insert = "";

    $l = $csv_enclosed . str_replace($csv_enclosed, $csv_escaped . $csv_enclosed,
    stripslashes("Email Address")) . $csv_enclosed;
    $schema_insert .= $l;
    $schema_insert .= $csv_separator;

    $l = $csv_enclosed . str_replace($csv_enclosed, $csv_escaped . $csv_enclosed,
    stripslashes("Add Date")) . $csv_enclosed;
    $schema_insert .= $l;
    $schema_insert .= $csv_separator;

    $out = trim(substr($schema_insert, 0, -1));
    $out .= $csv_terminated;

    if(count($content_arr) > 0)
    {               
        foreach($content_arr as $content)
        {   
             $schema_insert = '';

            if ($content->email != '' || $content->add_date != '')
            {                           
                    $schema_insert .= $csv_enclosed . 
                    str_replace($csv_enclosed, $csv_escaped . $csv_enclosed, $content->email) . $csv_enclosed;

                     $schema_insert .= $csv_separator;

                    $schema_insert .= $csv_enclosed . 
                    str_replace($csv_enclosed, $csv_escaped . $csv_enclosed, $content->add_date) . $csv_enclosed;
                    $schema_insert .= $csv_separator;

           }        

            $schema_insert .= $csv_separator;
            $out .= $schema_insert;
            $out .= $csv_terminated;

        }
    }
    return $out;
}`