Linux, Apache, MySQL, PHP

<?php
/*
    Class: MenuDefault
        Menu base class
*/
class MenuDefault extends Menu {
    /*
        Function: process
        Returns:
            Object
    */   
    public function process($module, $element) {
        self::_process($module, $element->first('ul:first'));
        return $element;
    }
    /*
        Function: _process
        Returns:
            Void
    */
    protected static function _process($module, $element, $level = 0) {
        if ($level == 0) {
            $element->attr('class', 'menu '.$module->menu_style);
        } else {
            $element->addClass('level'.($level + 1));
        }
        foreach ($element->children('li') as $li) {
             // is active ?
            if ($active = $li->attr('data-menu-active')) {
                $active = $active == 2 ? ' active current' : ' active';
            }
             // is parent ?
            $ul = $li->children('ul');
            $parent = $ul->length ? ' parent' : null;
            // is first or last ? -- PROBLEM AREA
            $lis = $element->children("li");
             for($forl=0,$imax=$lis;
             $forl<$imax;$forl++){
             if ($forl==0) $position_n = 'first';
             elseif ($forl==$imax-1) $position_n = 'last';
             else $position_n = null;}
              // set class in li
            $li->attr('class', sprintf('level%d item%s '. $position_n .$parent.$active, $level + 1, $li->attr('data-id')));
            // set class in a/span
            foreach ($li->children('a,span') as $child) {
                // get title
                $title = $child->first('span:first');
                // set subtile
                $subtitle = $title ? explode('||', $title->text()) : array();
                if (count($subtitle) == 2) {
                    $li->addClass('hassubtitle');
                    $title->html(sprintf('%s%s', trim($subtitle[0]), trim($subtitle[1])));
                }
                // set image
                if ($image = $li->attr('data-menu-image')) {
                    $title->prepend(sprintf(' ', $image));
                }
                $child->addClass(sprintf('level%d'.$parent.$active, $level + 1));
            }
            // process submenu
            if ($ul->length) {
                self::_process($module, $ul->item(0), $level + 1);
            }
        }
   }
}

<ul class="menu menu-dropdown">
  <li class="level1 item24 first">...Subcode...</li>
  <li class="level1 item22 first parent">...Subcode...</li>
  <li class="level1 item23 first active current">...Subcode...</li>
  <li class="level1 item20 first">...Subcode...</li>
  <li class="level1 item19 first">...Subcode...</li>
</ul>

<ul class="menu menu-dropdown">
  <li class="level1 item24 first">...Subcode...</li>
  <li class="level1 item22 parent">...Subcode...</li>
  <li class="level1 item23 active current">...Subcode...</li>
  <li class="level1 item20">...Subcode...</li>
  <li class="level1 item19 last">...Subcode...</li>
</ul>

// is first or last ? -- PROBLEM AREA
$children_elements = array_values($element->children('li')); [/U]
$last_child_index = count($children_elements)-1; 
foreach($children_elements as $child_index => $li) {
    if ($forl==0) $position_n = 'first';
    elseif ($forl==$imax-1) $position_n = 'last';
    else $position_n = null;}

if(empty($children_elements)) {
    echo hi;
} 

<?php 
//function submit(){
// Define database credentials
$host = 'localhost';
$user = 'admin';
$password = '12345';
$database = 'staff_db';
// Create db connection
$conn = mysql_connect($host,$user,$password) or die('Error: Could not connect to database - '.mysql_error());
// Once connected, we can select a database
mysql_select_db($database,$conn) or die('Error in selecting the database: '.mysql_error());

// Grab user input and sanitize 
$title = mysql_real_escape_string(filter_var(trim($_POST['Title']), FILTER_SANITIZE_STRING));
$fname = mysql_real_escape_string(filter_var(trim($_POST['FirstName']), FILTER_SANITIZE_STRING));
$mdname = mysql_real_escape_string(filter_var(trim($_POST['MiddleName']), FILTER_SANITIZE_STRING));
$lname = mysql_real_escape_string(filter_var(trim($_POST['LastName']), FILTER_SANITIZE_STRING));
$res_add = mysql_real_escape_string(filter_var(trim($_POST['Resid_Add']), FILTER_SANITIZE_STRING));
if(! $res_tel = mysql_real_escape_string(filter_var(trim($_POST['Resid_Tel']), FILTER_SANITIZE_NUMBER_INT)))
{
	echo 'Please enter a valid telephone number.';
	};
if(! $mobile = mysql_real_escape_string(filter_var(trim($_POST['Mobile']), FILTER_SANITIZE_NUMBER_INT)))
{
	echo 'Please enter a valid mobile number.';
	die();
	};
//$frmstaff_status = mysql_real_escape_string(filter_var(trim($_POST['frmStaff_Status']), FILTER_SANITIZE_STRING));

// Validate the user email
if(! $email = filter_var(trim($_POST['Email']), FILTER_VALIDATE_EMAIL))
{     
    echo 'Please enter a valid email.';
    die();
}

$sql = 'INSERT INTO `$database`.`Emp_Details` (
`Title` ,
`First_Name` , 
`Middle_Name`,
`Last_Name` ,
`Res_Add` ,
`Res_Tel` ,
`Mobile` ,
`Email` 
)
VALUES (".$title." , ".$fname." ,  ".$mdname.", ".$lname.", ".$res_add.", ".$res_tel.", ".$mobile.", ".$email.")';

if(mysql_query($sql))
{
    echo 'User information saved successfully.';
}else
{
    echo 'Error: We encountered an error while inserting the new record.';
}
mysql_close($conn);
//}

?>