PHP - Counting Downloaded And Previewed Amont Belong To A Particular File In A Web Sit

Nevermind.  Changed the following and it works:

->withHeader('Content-Disposition', 'attachment; filename="'.$name.'"')

When downloading a file, the name of the file is 'report.csv' (it literally has single quotes around it so Window's does recognize it as a CSV file).  I am obviously adding them, but I am not sure where.  The workflow is browser requests from webserver,  webserver performs cURL request to a second server, second server creates CSV file and returns it to webserver which returns it to browser client.  My code is below (I removed some unrelated script for briefness, but should have all pertinent code).  Do you see the culprit?  Any recommendations on how to troubleshoot?  Thanks

Browser Client

$('#list-header').on('click', '.download-data', function() {
    window.location.assign("/api/query/trend?parameters=foo&Accept=csv");
});

Webserver

$app->get('/api/query/trend', function(Request $request, Response $response) {
    $uri = $request->getUri();
    $path = substr($uri->getPath(), 4); //Remove "/api" from uri
    return $this->serverBridge->proxy($request->withUri($uri->withPath($path)), $response);
});

$c['serverBridge'] = function ($c) {
    return new \NotionCommotion\ServerBridge\ServerBridge(
        new \GuzzleHttp\Client([
            'base_uri' => $c['settings']['server']['scheme'].'://'.$c['settings']['server']['host'],
            'headers' => ['X-NotionCommotion-Key' => $c['settings']['server']['key']],
            'timeout'  => 30,
        ])
    );
};

class ServerBridge
{

    private $httpClient;

    public function __construct(\GuzzleHttp\Client $httpClient){
        $this->httpClient=$httpClient;  //Must be configured with default path
    }

    public function proxy(\Slim\Http\Request $slimRequest, \Slim\Http\Response $slimResponse):\Slim\Http\Response {
        //Forwards Slim Request to another server and returns the updated Slim Response.
        //TBD whether this method should change urlencoded body if provided to JSON and change Content-Type header.
        //TBD whether this method should change not send Slim request to Guzzle, but instead create a new Guzzle request and apply headers as applicable.
        $body=$slimRequest->getBody();
        $slimRequest=($contentType=$slimRequest->getContentType())
        ?$slimRequest->withUri($slimRequest->getUri()->withHost($this->getHost(false)))  //Change slim's host to API server!
        :$slimRequest->withUri($slimRequest->getUri()->withHost($this->getHost(false)))->withHeader('Content-Type', $contentType);  //And also apply Content-Type

        $guzzleResponse=$this->httpClient->send($slimRequest);
        //Blacklist headers which should not be changed.  TBD whether I should whitelist headers instead.
        $excludedHeaders=['Date', 'Server', 'X-Powered-By', 'Access-Control-Allow-Origin', 'Access-Control-Allow-Methods', 'Access-Control-Allow-Headers'];
        $headerArrays=array_diff_key($guzzleResponse->getHeaders(), array_flip($excludedHeaders));
        foreach($headerArrays as $headerName=>$headers) {
            foreach($headers as $headerValue) {
                $slimResponse=$slimResponse->withHeader($headerName, $headerValue);
            }
        }
        return $slimResponse->withStatus($guzzleResponse->getStatusCode())->withBody($guzzleResponse->getBody());
    }

    private function getHost(bool $includeSchema=true):string {
        $baseUri=$this->httpClient->getConfig()['base_uri'];
        return $includeSchema?$baseUri->getScheme().'://'.$baseUri->getHost():$baseUri->getHost();
    }
}

API Server

$app->get('/query/trend', function (Request $request, Response $response) {
    $dataObject = $this->trendService->query($request->getQueryParams());
    $responder = new ResponseContent\ResponseContentCsv($response);
    return $responder->respond($dataObject);
);

class ResponseContentCsv
{
    protected  $response;

    public function __construct(\Psr\Http\Message\ResponseInterface $response) {
        $this->response=$response;
    }

    public function respond($dataObject) {

        $stream = fopen('php://memory', 'w+');

        //Use fputcsv() to write to stream

        $name='report.csv';
        rewind($stream);

        return $this->response->withBody(new \Slim\Http\Stream($stream))
        //->setOutputBuffering(false)
        ->withHeader('Content-Description', 'File Transfer')
        ->withHeader('Cache-Control', 'must-revalidate, post-check=0, pre-check=0')
        //->withHeader('Content-Type', 'text/csv')
        ->withHeader('Content-Disposition', "attachment; filename='$name'")
        ->withHeader('Expires', '0')
        //->withHeader('Content-Length', $doc->size),
        ->withHeader('Pragma', 'public');
    }
}

Hi, 

I'm trying to display the products for a certain tag in the email for new order in wooCommerce. For example, I want that when a client buys a product with a certain tag, all the products that have that tag to be added automatically to the order email too. 

For now I achieved to display the tag in the email but not the products that have that tag. I don't know how get the products that belongs to that tag and add them to the cart to so I can display them in the email.

Any help as small as it may be, it is very welcomed, please. I'm a bit stuck. I'm not very skilled in php...

Thank you very much

function email_products_per_tag( $order, $item ) {
    $items = $order->get_items();
    foreach ( $items as $item ) {
        $terms = wp_get_post_terms( $item['product_id'], 'product_tag' );
        foreach($terms as $term){
            $term_names[] = $term->name; // Product tag Name
           // $item2 = 'product_tag'=> ; // not very sure about this line...
        }
    }
}
    add_action( 'woocommerce_email_after_order_table', 'email_products_per_tag', 10, 4 );