<?php
function error_log2f($errno, $errstr)
{
    $f = fopen("error.log", "a");
    fputs($f, "<b>Error:</b> [$errno] $errstr\n");
    fclose($f);
}

set_error_handler("error_log2f");

echo ($test);
sadsa
?>

<Limit GET POST>
 order allow,deny
 deny from 123.123.123.123
 allow from all
</Limit>

<input type="radio" name="radio1" value="no" checked>Все
<input type="radio" name="radio1" value="1">Покупка
<input type="radio" name="radio1" value="2">Продажа
<input type="radio" name="radio1" value="3">Аренда

<?php
$fields = array();
$fields[1] = array("value" => "1", "text" => "Все");
$fields[2] = array("value" => "2", "text" => "Покупка");
$fields[3] = array("value" => "3", "text" => "Продажа");
foreach ($fields as $select) {
    $var = @$_POST["radio1"];
    $selected = ($select["value"] == $var) ? "checked" : "";
    echo '<input type="radio" name="radio1" value="' . $select["value"] . '"' . " " .
        $selected . '>' . $select['text'];
}
?>