Pass value between 2 html forms in the same page - php

Question

this question has been asked but I haven't found a working solution.
I have 2 forms. The first is sending datas to the database (form2). The second one is uploading a photo (form1).
I would need to save the path of the uploaded picture and store it in a text input in form1 and after send it with the form2 datas. Do you have any tips? It is possible without JQuery using just Php?
I have a solution with JQuery but it is not working.
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script>
function submitform()
{
var name=$('#name').val();
$('#variable').val(name); // set the value of name field to the hidden field
$('form#form1').submit(); // submit the form
}
</script>
Create a new product
<form action="../handlers/processNewProduct.php" id="form2">
<div class="mb-3">
<label for="productname" class="form-label">Product Name</label>
<input type="text" class="form-control" id="productname" name="productname" placeholder="Product Name">
</div>
<div class="mb-3">
<label for="description" class="form-label">Description</label>
<input type="text" class="form-control" id="description" value="xxxxxxxxx" name="description" placeholder="Description">
</div>
<div class="mb-3">
<label for="pricelist" class="form-label">Price list</label>
<input type="number" class="form-control" id="pricelist" name="pricelist" placeholder="Price">
</div>
<input type='text' name='variable' id='variable' value=''>
<button type="" class="btn btn-primary">Insert data</button>
</form>
<form action="../handlers/processUploadProductPicture.php" method="post" enctype="multipart/form-data" id="form1" onsubmit="submitform()">
Select image to upload:
<input type='file' name='fileToUpload' id='name'>
<input type='submit' value='Upload Image' id='upload'>
</form>