Multi-dimensional arrays php [Solved]

i want to create a multi dimensional array in a for loop and this is my code but it makes an error. i dont know whats the error. it seems to be correct. thanks! :D

    $Repeat_Every = array();
    $Days_Of_Week = array("Monday","Tuesday","Wednesday","Thursday","Friday","Saturday");

    for ($a = 1;$a<=((htmlspecialchars($_POST['repeats']) == "Daily" || htmlspecialchars($_POST['repeats']) == "Weekly")?(((htmlspecialchars($_POST['repeats']) == "Daily")?(30):(6))):(0));$a++) {
        $Repeat_Every[$a] = array('Day'     => ((htmlspecialchars($_POST['repeats']) == "Daily")?($a . " Days"):($Days_Of_Week[$a])) ,
                                  'Value'   => 86400000 * $a);
    }

    for ($a = 0;$a<count($Repeat_Every);$a++) {
        if ($Repeat_Every[$a]['Value'] != htmlspecialchars($_POST['repeatEvery'])) {
            $List .= "<tr name = '" . $Repeat_Every[$a]['Value'] . "' value = '" . $Repeat_Every[$a]['Day'] . "' title = '" . $Repeat_Every[$a]['Day'] . "'>

                        <td class = 'add-edit-form-list-data'> " . $Repeat_Every[$a]['Day'] . " </td>

                      </tr>";
        }
    }