[PHP] pobierz, plaintext 
$sz1 = '52.25'; $wy1 = '20.99';
$query = mysql_query("SELECT id, sz, wy FROM obiekty WHERE id<6 ") or die(mysql_error());
while($row = mysql_fetch_row($query))
{
$id = $row[0];
$sz2 = $row[1];
$wy2 = $row[2];
$odleglosc = rad2deg(acos(sin(deg2rad($sz1)) * sin(deg2rad($sz2)) +  cos(deg2rad($sz1)) * cos(deg2rad($sz2)) * cos(deg2rad($wy1-$wy2))))  * 111.18957696;
echo $id.'-'.$odleglosc.'<br />';
$dane[] = array('odleglosc' => $odleglosc, 'id' => $row[0]);
}
 
foreach ($dane as $klucz => $wiersz) {
	$id[$klucz] = $wiersz['id'];
    $odleglosc[$klucz]  = $wiersz['odleglosc'];
}
 
array_multisort($odleglosc, SORT_ASC, $dane);
foreach ($dane as $pk) {
    echo ''.$pk['id'].'-'.$pk['odleglosc'].'<br />';
}
[PHP] pobierz, plaintext 

[PHP] pobierz, plaintext 
class myutil {
    static private $sortfield = null;
    static private $sortorder = 1;
    static private function sort_callback(&$a, &$b) {
        if($a[self::$sortfield] == $b[self::$sortfield]) return 0;
        return ($a[self::$sortfield] < $b[self::$sortfield])? -self::$sortorder : self::$sortorder;
    }
    static function sort(&$v, $field, $asc=true) {
        self::$sortfield = $field;
        self::$sortorder = $asc? 1 : -1;
        usort($v, array('myutil', 'sort_callback'));
    }
}
[PHP] pobierz, plaintext 

[PHP] pobierz, plaintext 
myutil::sort($dane, 'odleglosc');
[PHP] pobierz, plaintext 

[PHP] pobierz, plaintext 
foreach ($dane as $klucz => $wiersz) {
	$id[$klucz] = $wiersz['id'];
    $odleglosc[$klucz]  = $wiersz['odleglosc'];
}
 
array_multisort($odleglosc, SORT_ASC, $dane);
foreach ($dane as $pk) {
    echo ''.$pk['id'].'-'.$pk['odleglosc'].'<br />';
}
[PHP] pobierz, plaintext 

[PHP] pobierz, plaintext 
$id = $dane[0]['id'];
$odleglosc = $dane[0]['odleglosc'];
[PHP] pobierz, plaintext