can You please help me I have to submit my project today
what I am trying is here but it not works I got an error like this

Warning: htmlspecialchars() expects parameter 1 to be string, array given in /var/www/dashboard_campaign/library/Zend/View/Abstract.php on line 905
This is my form
<?php

class Admin_Form_Users extends Zend_Form
{
	// Admin_Form_Model
    protected $Tagkey;
    public function __construct($Tagkey){
          $this->Tagkey = $Tagkey;
             parent::__construct();
    //    parent::__construct($options);
    }
    public function prepareSubForm($spec)
    {
        if (is_string($spec)) {
            $subForm = $this->{$spec};
        } elseif ($spec instanceof Zend_Form_SubForm) {
            $subForm = $spec;
        } else {
            throw new Exception('Invalid argument passed to ' .
                                __FUNCTION__ . '()');
        }
        $this->setSubFormDecorators($subForm)
             ->addSubmitButton($subForm)
             ->addSubFormActions($subForm);
        return $subForm;
    }
    public function setSubFormDecorators(Zend_Form_SubForm $subForm)
    {
        $subForm->setDecorators(array(
            'FormElements',
            array('HtmlTag', array('tag' => 'dl',
                                   'class' => 'zend_form')),
            'Form',
        ));
        return $this;
    }
    public function addSubmitButton(Zend_Form_SubForm $subForm)
    {
        $subForm->addElement(new Zend_Form_Element_Submit(
            'save',
            array(
                'label'    => 'Save and continue',
                'required' => false,
                'ignore'   => true,
            )
        ));
        return $this;
    }



    public function init()
    {
        /* Form Elements & Other Definitions Here ... */
     $this->setName('Users');
     $dbuid = new Zend_Form_Element_Hidden('dbuid');
     $dbuid->addFilter('Int');

     $parents = array();
     $childs = array();
     foreach ($this->Tagkey as $aResultDataValue) {
                    $parents [$aResultDataValue['parent']] = $aResultDataValue['parent'];
                    $childs [$aResultDataValue['parent']][] = $aResultDataValue['child'];
    }

	/*	$form = Zend_Form();

		foreach ($parents as $parent) {

		   $subForm = new Zend_SubForm();
		   $subForm->addElement($parent);

		   foreach ($children as $child) {
			   $subForm->addElement($child);
		   }

		   $form->addSubForm($subForm);
		}
     */

    foreach ($parents as $parent){ // print_r ($parents); die();
	$tags = new Zend_Form_SubForm();
	$tags->addElements(array(
    new Zend_Form_Element_MultiCheckbox('parent', array(
                    'multiOptions' =>   array($parent),
					'filters'      => array('StringTrim'),
					'validators'   => array(
                    array('InArray',
                          false,
                          array($parent))
                          )

       )),
       ));
	foreach ($childs as $child){
	$tags->addElements(array(
    new Zend_Form_Element_MultiCheckbox('child', array(
          'multiOptions' => array($child),
		  'filters'      => array('StringTrim'),
		  'validators'   => array(
                    array('InArray',
                          false,
                          $child)
                          )
		)),
		));
	}

    $this->addSubForms(array(
    'tags'  => $tags,
        )
    );
    }



 $username = new Zend_Form_Element_Text('username');
 $username->setLabel('Username');
 $username->setDecorators(array(
        'ViewHelper',
        'Description',
        'Errors',
        array(array('data'=>'HtmlTag'), array('tag' => 'td')),
        array('Label', array('tag' => 'td')),
        array(array('row'=>'HtmlTag'),array('tag'=>'tr'))
        ))
    ->setRequired(true)
    ->addFilter('StripTags')
    ->addFilter('StringTrim')
    ->addValidator('NotEmpty');

  $password = new Zend_Form_Element_Text('password');
  $password->setLabel('Password');
  $password->setDecorators(array(
            'ViewHelper',
            'Description',
            'Errors',
             array(array('data'=>'HtmlTag'), array('tag' => 'td')),
             array('Label', array('tag' => 'td')),
             array(array('row'=>'HtmlTag'),array('tag'=>'tr'))
             ))
        ->setRequired(true)
        ->addFilter('StripTags')
        ->addFilter('StringTrim')
        ->addValidator('NotEmpty');


    $firstname = new Zend_Form_Element_Text('firstname');
    $firstname->setLabel('First Name:');
    $firstname->setDecorators(array(
                'ViewHelper',
                'Description',
                'Errors',
                 array(array('data'=>'HtmlTag'), array('tag' => 'td')),
                 array('Label', array('tag' => 'td')),
                 array(array('row'=>'HtmlTag'),array('tag'=>'tr'))
                 ))
        ->setRequired(true)
        ->addFilter('StripTags')
        ->addFilter('StringTrim')
        ->addValidator('NotEmpty');

    $lastname = new Zend_Form_Element_Text('lastname');
    $lastname->setLabel('Last Name:');
    $lastname->setDecorators(array(
                'ViewHelper',
                'Description',
                'Errors',
                 array(array('data'=>'HtmlTag'), array('tag' => 'td')),
                 array('Label', array('tag' => 'td')),
                 array(array('row'=>'HtmlTag'),array('tag'=>'tr'))
                 ))
        ->setRequired(true)
        ->addFilter('StripTags')
        ->addFilter('StringTrim')
        ->addValidator('NotEmpty');

    $mobilephone = new Zend_Form_Element_Text('mobilephone');
    $mobilephone->setLabel('Mobile Phone#.');
    $mobilephone->setDecorators(array(
                'ViewHelper',
                'Description',
                'Errors',
                 array(array('data'=>'HtmlTag'), array('tag' => 'td')),
                 array('Label', array('tag' => 'td')),
                 array(array('row'=>'HtmlTag'),array('tag'=>'tr'))
                 ))
        ->setRequired(true)
        ->addFilter('StripTags')
        ->addFilter('StringTrim')
        ->addValidator('NotEmpty');

    $msp = new Zend_Form_Element_Select('msp');
    $msp->setLabel('Mobile Service Provider:');
    $msp->setMultiOptions(array(
                      'Docomo',
                    'BPL Cellular Limited',
                    'Hutch Group',
                    'Idea Cellular Limited',
                    'Aircel Limited'
                    ));
    $msp->setDecorators(array(
                'ViewHelper',
                'Description',
                'Errors',
                 array(array('data'=>'HtmlTag'), array('tag' => 'td')),
                 array('Label', array('tag' => 'td')),
                 array(array('row'=>'HtmlTag'),array('tag'=>'tr'))
                 ))
        ->setRequired(true)
        ->addFilter('StripTags')
        ->addFilter('StringTrim')
        ->addValidator('NotEmpty');

    $email = new Zend_Form_Element_Text('email');
    $email->setLabel('Email Address:');
    $email->setDecorators(array(
                'ViewHelper',
                'Description',
                'Errors',
                 array(array('data'=>'HtmlTag'), array('tag' => 'td')),
                 array('Label', array('tag' => 'td')),
                 array(array('row'=>'HtmlTag'),array('tag'=>'tr'))
                 ))
        ->setRequired(true)
        ->addFilter('StripTags')
        ->addFilter('StringTrim')
        ->addValidator('NotEmpty');


    $timezone= new Zend_Form_Element_Select('timezone');
    $timezone->setLabel('Time Zone:');
    $timezone->setMultiOptions(array(

                '1' =>    'Eastern',
                '2' =>     'Central',
                '3' =>     'Mountain',
                '4' =>     'Pacific',
                '5' =>     'Alaska',
                '6' =>     'Hawaii',

                    ));
  $timezone->setDecorators(array(
            'ViewHelper',
            'Description',
            'Errors',
             array(array('data'=>'HtmlTag'), array('tag' => 'td')),
             array('Label', array('tag' => 'td')),
             array(array('row'=>'HtmlTag'),array('tag'=>'tr'))
             ))
            ->setRequired(true)
            ->addFilter('StripTags')
            ->addFilter('StringTrim')
            ->addValidator('NotEmpty');

    $role = new Zend_Form_Element_Text('role');
    $role->setLabel('Role:');
    $role->setDecorators(array(
                'ViewHelper',
                'Description',
                'Errors',
                 array(array('data'=>'HtmlTag'), array('tag' => 'td')),
                 array('Label', array('tag' => 'td')),
                 array(array('row'=>'HtmlTag'),array('tag'=>'tr'))
                 ))
        ->setRequired(true)
        ->addFilter('StripTags')
        ->addFilter('StringTrim')
        ->addValidator('NotEmpty');


      $submit = new Zend_Form_Element_Submit('submit');
      $submit->setDecorators(array(
               'ViewHelper',
               'Description',
               'Errors',
                array(array('data'=>'HtmlTag'), array('tag' => 'td',
               'colspan'=>'2','align'=>'center')),
                array(array('row'=>'HtmlTag'),array('tag'=>'tr'))
                ));




        $submit->setAttrib('dbuid', 'submitbutton');
        $this->addElements(array($dbuid,$firstname,$lastname,$mobilephone,$msp,$email,$timezone,$username,$password,$role,$status,$createdDate,$submit));
        $this->setDecorators(array('FormElements',
                array(array('data'=>'HtmlTag'),array('tag'=>'table')),
                'Form'
                ));
    }

}