decimaal to wgs84 cords

<?php

# referentiepunt: https://www.javawa.nl/coords.html

function decimalToDMS($decimal, $isLatitude) {
    
    if ($isLatitude) {
        $h = ($decimal >= 0) ? 'N' : 'S';
    } else {
        $h = ($decimal >= 0) ? 'E' : 'W';
    }
    
    $decimaal = round($decimal,5);
    $graden_explode = explode(".", $decimaal);
    $graden = abs(intval($graden_explode[0]));
    $uren = $graden_explode[1];
    //$minuten = round($uren*60/100000,3);
    
     $minuten = round((('0.'.$uren)*60),3);
    if ($isLatitude) {
        $graden = $graden;
		
    } else {
        $graden = sprintf("%'.03d", $graden);
    }
    
    //cho 'Decimaal: '.$decimaal.'<br/>';
    //echo 'Graden: '.$graden.'<br/>';
    //echo 'Graden: '.$graden_explode[1].'<br/>';
    //echo 'h ddd.ddddd° (graden): '.$h.' '.$graden.'.'.$uren.'°<br/>';
    //echo 'h ddd° mm.mmm\' (graden en minuten): '.$h.' '.$graden.'° '.$minuten.'\'<br/>';
    $full_format = ''.$h.''.$graden.'° '.$minuten.'';
    
    return $full_format;
}

$latitude = 47.8297;
$longitude =  -3.696766;

//$latitude = 53.568783;
//$longitude =  6.749766;


$dmsLatitude = decimalToDMS($latitude, true);
$dmsLongitude = decimalToDMS($longitude, false);

echo "Breedtegraad: $dmsLatitude<br>";
echo "Lengtegraad: $dmsLongitude<br>";

?>