How to add the uploaded files to the media library of wordpress when a form submission happens using the gravity forms plugin?

Need to use this code and put it into theme functions.php file:

add_action( 'gform_after_submission', 'iss_gf_after_submission', 10, 2 );
function iss_gf_after_submission($entry, $form) {
//Walk through the form fields and find any file upload fields
foreach ($form['fields'] as $field) {
if ($field->type == 'fileupload') {
//See if an image was submitted with this entry
if (isset($entry[$field->id])) {
$fileurl = $entry[$field->id];
 
// The ID of the post this attachment is for. Use 0 for unattached.
$parent_post_id = 0;
 
// Check the type of file. We'll use this as the 'post_mime_type'.
$filetype = wp_check_filetype( basename( $fileurl ), null );
 
// Get the path to the upload directory.
$wp_upload_dir = wp_upload_dir();
 
//Gravity forms often uses its own upload folder, so we're going to grab whatever location that is
$parts = explode('uploads/', $entry[$field->id]);
$filepath = $wp_upload_dir['basedir'].'/'.$parts[1];
$fileurl = $wp_upload_dir['baseurl']. '/'.$parts[1];
 
// Prepare an array of post data for the attachment.
$attachment = array(
'guid' => $fileurl,
'post_mime_type' => $filetype['type'],
'post_title' => preg_replace( '/\.[^.]+$/', '', basename( $fileurl) ),
'post_content' => '',
'post_status' => 'inherit'
);
 
// Insert the attachment.
$attach_id = wp_insert_attachment( $attachment, $filepath, $parent_post_id );
 
//Image manipulations are usually an admin side function. Since Gravity Forms is a front of house solution, we need to include the image manipulations here.
require_once( ABSPATH . 'wp-admin/includes/image.php' );
 
// Generate the metadata for the attachment, and update the database record.
if ($attach_data = wp_generate_attachment_metadata($attach_id, $filepath)) {
wp_update_attachment_metadata($attach_id, $attach_data);
} else {
    print_r($attach_data);
echo '
<div id="message" class="error">
<h1>Failed to create Meta-Data</h1>
</div>
';
}
 
wp_update_attachment_metadata( $attach_id, $attach_data );
 
}
}
}
}

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