Check the internet connection using PHP function fsockopen

Here is a simple PHP function to check whether a machine is connected to internet or not. It uses a PHP function  fsockopen which initiates a socket connection to the given hostname at the specified port. If the connection is successful it will return true else false.

PHP code:

//function to check if the local machine has internet connection 
function checkConnection() 
	//Initiates a socket connection to at port 80
	$conn = @fsockopen("", 80, $errno, $errstr, 30); 
	if ($conn)
		$status = "Connection is OK";  
		$status = "NO Connection<br/>\n";
		$status .= "$errstr ($errno)"; 
	return $status; 

echo checkConnection();
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2 Responses to “Check the internet connection using PHP function fsockopen”

  1. Thanks for the script.. This is what I am exactly looking for… Solved my problem too :)
    Karthikeyan K recently posted..Product Comparison & Pricing Table using CSS3

  2. Ricky says:

    Thanks for the script. How if my web hosting do not enable fsockopen? Can we test connection with other method?
    Ricky recently posted..Perbedaan Situs Web, Web Hosting dan Web Desain

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