Calling python script from html/php-ThrowExceptions

Exception or error:

I am trying to make my python code run on website. In my python code, I need to input one image and one video url, like this:

import cv2


img = "1.jpg"
cap = cv2.VideoCapture("https://www.youtube.com/watch?v=-OUhbw-XsTg")

So I write a HTML code so that I can input image and video url:

    <html>
    <body>
    <form action="upload1.php" method="post" enctype="multipart/form-data">
    <input type="file" name="file" id="file" /><br/><br/>
     Video URLs:<input type="url" name="url" id="myURL"><br/><br/>
     <button name = "Analyze" type="submit"> Analyze </button>
      </form>
	    </body>
     </html>

I want that when I input an image and url, after clicking Analyze it can return the image and url path to python and run the code. I only know how to call python script but don’t know how to get and return value to python.

<?php
if (isset($_POST['Analyze'])){
    exec("python code.py",$output);
    var_dump($output);
}
?>

Can anyone help my how to get the path from HTML and return to python with PHP? Thank you.

How to solve:

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