# PHP

There are multiple ways how to whitelist your GoodAccess IP in PHP.\
Below is an example of a basic whitelisting function. For more advanced setup, please refer to the following [**documentation**](https://www.php.net/manual/en/reserved.variables.server.php).

```php
function isAllowed($ip){
    $whitelist = array(‘111.111.111.111’, ‘112.112.112.112’);    // If the ip is matched, return true
    if(in_array($ip, $whitelist)) {
        return true;
    }    return false;
}
```

Using the whitelisting function for access control.

```php
if (! isAllowed($_SERVER[‘REMOTE_ADDR’])) {
    exit;
}
```


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