Where to put PHP code that takes user machine information?

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Where to put PHP code that takes user machine information?

Asked 9 years, 5 months ago

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I created some functions responsible for taking the user’s IP (and ISP, parents, browser, OS) in order to keep a control of who accesses, how many times in a given minute I do not know where to insert in the pages of content of the site. Another question is the best way to get these kinds of information?

Code that picks up the information

<?php
    class ClientData{

        public $ip;
        public $isp;
        public $browser;
        public $so;
        public $city;
        public $country;
        public $referrer;

        /**
        *StartCatchData() 
        *Este método tem o objetivo de realizar todas as chamadas a métodos, obtendo 
        *assim todos os dados dos cliente.
        */
        public function StartCatchData(){
            $this->CatchIP();
        }

        public function CatchIP(){
            if(array_key_exists('HTTP_X_FORWARDED_FOR', $_SERVER)){
                $this->ip = $_SERVER["HTTP_X_FORWARDED_FOR"];  
            }else if(array_key_exists('REMOTE_ADDR', $_SERVER)) { 
                $this->ip = $_SERVER["REMOTE_ADDR"]; 
            }else if(array_key_exists('HTTP_CLIENT_IP', $_SERVER)) {
                $this->ip = $_SERVER["HTTP_CLIENT_IP"]; 
            }else{
                $this->ip = false;
            }
        }   
    }
?>

Content page

<html>
<head>
    <title>
        Teste
    </title>
</head>
<body>
<?php
    require_once 'ClientData.php';

    $clientData = new ClientData();

    $clientData->StartCatchData();
?>
Hello World!
</body> de exemplo:

"however do not know where to insert into the pages of content of the site"? Insert what? The information handles or the code? You want to display the data to the user?

– Guilherme Nascimento

2015/04/22 at 15:17
insert the code that triggers the methods that capture user information, in my example I put just below the tag <body>

– Ricardo

2015/04/22 at 15:23

1 answer

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by Guilherme Nascimento • **98,651** points · Answer 1 · 2015-04-22T15:30:16+00:00

Its doubt is not very clear, but if I understood it has two possible "environments":

I recommend using include, require, etc before anything else, to keep the project organization

Before rendering:

Run before the page is completely delivered to the customer, as your system needs to have customer data even able to see anything from the page.
```
<?php
    require_once 'ClientData.php';

    $clientData = new ClientData();
    $clientData->StartCatchData();
?><html>
<head>
...
```
After uploading the whole content

This process should be done if you need to know that the customer has already received the whole page, for example if you are creating a download counter, the counter should only "add up" when the download is completed:
```
<?php
    require_once 'ClientData.php';
?><html>

...

</html><?php
    $clientData = new ClientData();
    $clientData->StartCatchData();
?>
```