<?php
use someapiconnectionPersons;
try {  
    require_once('autoload.php');
    $PersonsAPI = new Persons();
    $data = $PersonsAPI->get();

    if (!empty($data)) {
        header('Content-Type: text/csv');
        header('Content-Disposition: attachment;filename=offline_persons.csv');

        $fp = fopen('php://output', 'wb');

        fputcsv($fp, array_keys($data));

        
        foreach ($data as $line) {
            $val = explode(",",$line);
            fputcsv($fp, $line);
        }

       
        fclose($fp);
    } else {
        echo "No data found";
    }
} catch (Exception $e) {
    echo "Error fetching data: " . $e->getMessage();
}

OUTPUT Error is: PHP Fatal error: Uncaught TypeError: fputcsv(): Argument #2 ($fields) must be of type array
Stack Trace: fputcsv(Resource id #15, Object(APIEthosPersons), ‘,’)

Followed by a list of numbers

0,1,2,3,4,5,….

New to php any help on where I am going wrong would be appreciated