public function is_mobile($include_iphone_and_ipod=true)

{

    $mobile_browser = 0;

    $user_agent = $this->get_value('_SERVER', 'HTTP_USER_AGENT');

    

    if (preg_match('/(up.browser|up.link|mmp|symbian|smartphone|midp|wap|phone)/i', strtolower($user_agent))) {

        $mobile_browser++;

    }

    

    if (! $include_iphone_and_ipod) {

        if (preg_match('/(iphone|ipod)/i', strtolower($user_agent))) {

            $mobile_browser--;

        }

    }



    if (   (strpos(strtolower($this->get_value('_SERVER', 'HTTP_ACCEPT')),'application/vnd.wap.xhtml+xml')>0)

        || ((   $this->has_value('_SERVER', 'HTTP_X_WAP_PROFILE')

             || $this->has_value('_SERVER', 'HTTP_PROFILE'))))

    {

        $mobile_browser++;

    }



    $mobile_ua = strtolower(substr($user_agent, 0, 4));

    $mobile_agents = array(

        'w3c ','acs-','alav','alca','amoi','audi','avan','benq','bird','blac',

        'blaz','brew','cell','cldc','cmd-','dang','doco','eric','hipt','inno',

        'ipaq','java','jigs','kddi','keji','leno','lg-c','lg-d','lg-g','lge-',

        'maui','maxo','midp','mits','mmef','mobi','mot-','moto','mwbp','nec-',

        'newt','noki','oper','palm','pana','pant','phil','play','port','prox',

        'qwap','sage','sams','sany','sch-','sec-','send','seri','sgh-','shar',

        'sie-','siem','smal','smar','sony','sph-','symb','t-mo','teli','tim-',

        'tosh','tsm-','upg1','upsi','vk-v','voda','wap-','wapa','wapi','wapp',

        'wapr','webc','winw','winw','xda','xda-'

    );



    if (in_array($mobile_ua, $mobile_agents)) {

        $mobile_browser++;

    }

    if (   $this->has_value('_SERVER', 'ALL_HTTP')

        && strpos(strtolower($this->get_value('_SERVER', 'ALL_HTTP')), 'OperaMini') > 0)

    {

        $mobile_browser++;

    }

    

    if (strpos(strtolower($user_agent), 'windows') > 0) {

        $mobile_browser = 0;

    }



    if ($mobile_browser > 0) {

        return true;

    }



    return false;

}

<?php

$resource = new xmlObjectItem();

$resource->items = array(

    'id' => 100,

    'name' => "Jerry Jalava",

    'person_id' => 1

);

$resource->attributes = array(

    'person_id' => array(

        'is_assoc' => true,

        'foreign_model' => 'person',

        'foreign_key' => 'id'

    )

);



$resource_set = new xmlObjectSet();

$resource_set->wrapper_id = 'resource';

$resource_set->items[] = $resource;



$projects = array();

for ($i=1; $i <= 1; $i++)

{

    $object = new xmlObjectItem();

    $object->items = array(

        'id' => $i,

        'name' => "Project {$i}",

        'manager_id' => $i+1,

        'resources' => $resource_set

    );

    

    $projects[] = $object;

}



$project_set = new xmlObjectSet();

$project_set->wrapper_id = 'project';

$project_set->items = $projects;



$clients = array();

for ($i=1; $i <= 1; $i++)

{

    $client = new xmlObjectItem();

    $client->items = array(

        'id' => $i,

        'name' => "Client {$i}",

        'contact_id' => $i+1,

        'team-leader' => null,

        'projects' => $project_set

    );    

    $client->attributes = array(

        'contact_id' => array(

            'is_assoc' => true,

            'foreign_model' => 'person',

            'foreign_key' => 'id'

        )

    );

    

    $clients[] = $client;

}

$client_set = new xmlObjectSet();

$client_set->wrapper_id = 'client';

$client_set->items = $clients;



echo "complex set:\n";

var_dump($client_set);



echo "\n--------toXml---------\n";



$xmlSet_clients = xmlObjects::toXml($client_set, 'clients');

echo "complex:\n";

echo $xmlSet_clients;



echo "\n--------fromXml---------\n";



$client_set = xmlObjects::fromXml($xmlSet_clients);

echo "client_set root: {$client_set->root}\n";

var_dump($client_set);



echo "\n--------back toXml---------\n";



$xmlSet_clients2 = xmlObjects::toXml($client_set);

echo "complex:\n";

echo $xmlSet_clients2;



if ($xmlSet_clients == $xmlSet_clients2) {

    echo "\n\nVALID SET CONVERSION\n\n";

}



?>

<?php



class mother extends events_observable

{

    public function __construct()

    {

        parent::__construct();

        

        $this->addEventListener(events_event::ONCONSTRUCT, events::delegate($this, 'on_object_constructed'));

    }

    

    public function on_object_constructed($target, $args)

    {

        echo "{$target->name} has born.";

    }

}



class child extends events_observable

{

    public $name;

    

    public function __construct($name)

    {

        parent::__construct();

        

        $this->name = $name;

        

        $this->dispatchEvent(new events_event(events_event::ONCONSTRUCT, $this));

    }

}



$mother = new mother();

$child = new child('Jack');



?>