In writing a recent distributed db application (using AMP) I needed to find a way to check if the local machine had access to the internet, to be able to update the db at the master site. So I wrote this.
It uses fsockopen() to open a connection to a remote website, substitute yours in, and looks on ports 80 for http connections or 443 for SSL connections.
When called the function returns true id connected or false if not.
//-----------------------------------------------------------------------------
// is_connected function to check for internet connection
//-----------------------------------------------------------------------------
<?php
function is_connected()
{
//check to see if the local machine is connected to the web
//uses sockets to open a connection to apisonline.com
$connected = @fsockopen("www.some_domain.com", [80|443]);
if ($connected){
$is_conn = true;
fclose($connected);
}else{
$is_conn = false;
}
return $is_conn;
vikas agrawal wrote :1219
You can better check the internet connection using
system("ifconfig"); and check for the ppp part of the output and find out the ip address allocated by the isp
