Category: PHP

Are you using $_SERVER[‘REMOTE_ADDR’] to find the the client’s IP address in PHP? Well dude, you might be amazed to know that it may not return the true IP address of the client at all time. If your client is connected to the Internet through Proxy Server then $_SERVER[‘REMOTE_ADDR’] in PHP just returns the the IP address of the proxy server not of the client’s machine. So here is a simple function in PHP to find the real IP address of the client’s machine. There are extra Server variable which might be available to determine the exact IP address of the client’s machine in PHP, they are HTTP_CLIENT_IP and HTTP_X_FORWARDED_FOR. Continue reading How to get client IP address in PHP

In some case you have to check what method was used to request your web page or check some values in POST parameters.

You have two options to check it using PHP.

1. Check if there’s ANY POST data at all

//Note: This resolves as true even if all $_POST values are empty strings
if (!empty($_POST))
{
    // handle post data
    $fromPerson = '+from%3A'.$_POST['fromPerson'];
    echo $fromPerson;
}

2. Only check if a PARTICULAR Key is available in post data

Try these PHP code to check some POST parameter:

if (isset($_POST['fromPerson']) )
{
    $fromPerson = '+from%3A'.$_POST['fromPerson'];
    echo $fromPerson;
}