Laravel manual redirect

redirect.php

public static function render($data)
    {
        $url = 'https://melakapaystg.melaka.gov.my/stom/request';

        echo "<form id='autosubmit' action='".$url."' method='post'>";
        if (is_array($fieldValues) || is_object($fieldValues))
        {
            foreach ($fieldValues as $key => $val)
            {
                echo "<input type='hidden' name='".$key."' value='".htmlspecialchars($val)."'>";
            }
        }
        echo "</form>";
        echo "<script type='text/javascript'>
            function submitForm() {
                document.getElementById('autosubmit').submit();
            }
            window.onload = submitForm;
        </script>";
    }

// Sample usage
$data = [
    'merchant-code' => 'stom',
    'amount' => '100'
];

return $this->render($data);