Requests for sub-resources using ftp protocols are obsolete

solution to my problem:

to the final download the image, but without saving it on my server, use the function file_get_contents of php, then code the string that returns this function to base64 and then in the src attribute of the IMG tag I put data: image / jpg; base64, as they do not weigh so much and the query is asynchronous, here the code is in case someone needs it:

$context = stream_context_create(array('ftp' => array('header'=>'Connection: close\r\n')));
$Imagen = file_get_contents($entry->Ruta, false, $context);
$imageData = base64_encode($Imagen);

echo '<img  id="ImgProd'.$i.'" src="data:image/jpg;base64,".$imageData." style="height:auto; max-width: 90%; border-radius: 5px;" class="form-control" name="sImagen"/>';

this works for me, because what a download ends, the image is displayed instantly while the other images are downloaded and so on.
thanks to those who commented and contributed ideas !!

The simplest: it uses a proxy PHP, which converts HTTP requests into FTP requests.

It is not necessary to handle the FTP protocol completely. You can use the ftp_get( ) function, which frees all the work.

The idea is simple: you create a file ftp.php that is limited to get the file that you pass as a parameter, and send it by the PHP exit itself. In the official documentation of ftp_get () you have several examples about it.

This scheme presents 2 inconveniences:

In summary: this method is slow , but I think it is the only feasible solution in your case, if you do not want to copy those images to your own server.

I think your problem could be solved like this: sftp://user:password@domain/ruta/imagen.png , but for that to work, you might need to install a security certificate on your server and enable the sftp protocol