How to get json after form submit?

Question

PHP

$loadurl = 'https://pu.mycdn.me/uploadImage?apiToken=pVE****************************'
echo '<form method="GET" enctype="multipart/form-data" action="' . $loadurl  . '">
    <input type="file" name="pic1" accept="image/*" />
    <input type="submit" /> </form>';

Wrote a form in php.
Main task: to get the data that the form returns

Answer 1

The form sends a request to a third-party address, so there are several options:
1. AJAX send a request instead of submitting the form
2. send the form to a service on your server and there already make a request to the desired address (guzzle or curl if the first one is difficult)