/**
* Determines the MIME type based on the extension name of the specified file.
* This method will use a local map between extension names and MIME types.
*
* @param string $fileName the file name.
* @return string the MIME type. Null is returned if the MIME type cannot be determined.
*/
public function getMimeType($fileName)
{
return MimeType::getMimeType($fileName);
}
/**
* 发送文件到浏览器
*
* @param string $filePath the path of the file to be sent.
* @param string $attachmentName the file name shown to the user. If null, it will be determined from `$filePath`.
* @param array $options additional options for sending the file. The following options are supported:
*
* - `mimeType`: the MIME type of the content. If not set, it will be guessed based on `$filePath`
* - `inline`: boolean, whether the browser should open the file within the browser window. Defaults to false,
* meaning a download dialog will pop up.
*
* @return static the response object itself
*/
public function sendFile($filePath, $attachmentName = null, $options = [])
{
if (!isset($options['mimeType'])) {
$options['mimeType'] = MimeType::getMimeType($filePath);
}
if ($attachmentName === null) {
$attachmentName = basename($filePath);
}
$handle = fopen($filePath, 'rb');
$this->sendStreamAsFile($handle, $attachmentName, $options);
return $this;
}
