Passing multiple images via file_get_contents('php://input')

We have followed the tutorial of Juan_Antonio "Upload and save image file as BLOB.postFile.postText".

It works very well to store one image in the SQL DB, we are passing the appropriate parameters from App Inventor to a .php with file_get_contents('php://input'). We are not able to use this method to store multiple images to the same record in the DB table. Any suggestion on how we can use postFile and file_get_contents('php://input') in order to achieve the desired result?
Thank you for any help/suggestion!

I haven't tried this, select images and save their path in a list. Using a clock automatically upload the images one by one every 10 seconds (for example),

If you want all the images in the same record, you will need to create the additional fields in the record for each blob/extension/filename, set a variable (counter) with each upload, and edit your php file to test for the counter value and assign the blob/extension/filename to the correct fields of the record

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