How to create a simple module with one variable

[wakabayashi]

Hello I have found a php Code, which works nicely, but I don't know how to make this to a module. I need a module, since in prestashop I can't use {php} tags.

$xml = simplexml_load_file("http://www.geoplugin.net/xml.gp?ip=".getRealIpAddr());
    $country = $xml->geoplugin_countryName ;
    if($country != "Switzerland")
    {
		$werbung=="yes";	
	}
	
	else { $werbung=="no";
	
	}


//For getting IP Address

    function getRealIpAddr()
    {
        if (!empty($_SERVER['HTTP_CLIENT_IP']))   //check ip from share internet
        {
          $ip=$_SERVER['HTTP_CLIENT_IP'];
        }
        elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR']))   //to check ip is pass from proxy
        {
          $ip=$_SERVER['HTTP_X_FORWARDED_FOR'];
        }
        else
        {
          $ip=$_SERVER['REMOTE_ADDR'];
        }
        return $ip;
    }

This is my Code. Only thing I need, is to bring $werbung variable to smarty template. I would like to use this variable for example on cms page. 

 

I want to do this:

{if $werbung =="yes"}Show something{/if}

should be very easy or not?

 

Would be very thankful if you could help me!

Edited September 26, 2016 by wakabayashi (see edit history)

[vekia]

where you want to use this:
 

{if $werbung =="yes"}Show something{/if}

? everything depends on it

[wakabayashi]

Oh maybe I should say, what I want to achieve. Basically I have a blog, where I show Google Adsense. My customers are 99% from switzerland. I want to have a module, which only shows Adsense, if the visitor is NOT from switzerland.

 

Actually best solution for me is, to have a own module, which adds a block to the right_column. This way I can use it in my blog and on cms pages. 

 

Thanks for your help!

[vekia]

it can be done without module, you can use FrontController modification / override , at the end (inside class) put this:
 

    public static function CheckGuestCountry($country_to_check)
    {
        if (!empty($_SERVER['HTTP_CLIENT_IP']))   //check ip from share internet
        {
          $ip=$_SERVER['HTTP_CLIENT_IP'];
        }
        elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR']))   //to check ip is pass from proxy
        {
          $ip=$_SERVER['HTTP_X_FORWARDED_FOR'];
        }
        else
        {
          $ip=$_SERVER['REMOTE_ADDR'];
        }
        
        $xml = simplexml_load_file("http://www.geoplugin.net/xml.gp?ip=".$ip);
        $country = $xml->geoplugin_countryName ;
        if($country != $country_to_check)
        {
    	   return false;
    	} else { 
    	   return true;
    	}
    }

then in your theme .tpl file you can use this:

{if FrontController::CheckGuestCountry('Switzerland')}
Customer from switzerland
{else}
Customer from somewhere else
{/if}

if you really need module for this, you can put the same function to the module, use public function hookRightColumn($params) to show .tpl file

and then in .tpl file of the module that is called in hookRightColumn use this:
 

{if ModuleName::CheckGuestCountry('Switzerland')}
Customer from switzerland
{else}
Customer from somewhere else
{/if}

where ModuleName is the name of your module

[wakabayashi]

Thanks Vekia! I did it without a module. It works like a charme!

[wakabayashi]

Yes you are right. But I couldn't manage to make the module, since I have no experience with it. Even after reading your tutorial it isn't clear to me...