Почему не выводится результат тега?

$xfieldsdata_vremja = xfieldsdataload( $row['xfields'] );
$time_vremja = explode(" ", $xfieldsdata_vremja['vremja-prigotovlenija']);
$tvremja = (int)$time_vremja[0];
$minytes = ($tvremja % 60) * 1;
$chas = floor($tvremja / 60);
$chas_d = ($chas % 24) * 1;
$deys = ($chas / 24);
$minytes_i = 'мин.';
$ch_i  = 'ч.';
$deys_i  = 'д.';


if ($minytes * 1 > 0 && $chas_d >= 1 && $deys >= 1) {
    $mod_i = $deys . " $deys_i " .  $chas_d . " $ch_i " . $minytes . " $minytes_i";
} elseif ($minytes == 0 && $chas_d >= 1 && $deys >= 1) {
    $mod_i = $deys . " $deys_i " .  $chas_d . " $ch_i";
} elseif ($minytes * 1 > 0 && $chas_d < 1 && $deys >= 1) {
    $mod_i = $deys . " $deys_i " .  $minytes . " $minytes_i";
} elseif ($minytes == 0 && $chas_d < 1 && $deys >= 1) {
    $mod_i = $deys . " $deys_i";	
} elseif ($minytes * 1 > 0 && $chas >= 1 && $deys < 1) {
    $mod_i = $chas . " $ch_i " . $minytes . " $minytes_i";
} elseif ($minytes == 0 && $chas >= 1 && $deys < 1) {
    $mod_i = $chas . " $ch_i";
} elseif ($chas < 1 && $deys < 1) {
    $mod_i = $minytes . " $minytes_i";
} else {
    $mod_i = $tvremja . " $minytes_i";
}
$tpl->set( '{vremja-prigotovlenija-norm}', $mod_i );