How to check the IP status in Yii2 - php

Question

I have a web-service, which is deployed on a server. The web-service is working perfectly. Now I want to do is to deploy the same web-service on another server. And then at my client site I want to check that If any of the server is running than the call is made.
I want to do something like that
$Ip1= "192.168.1.1/GetSomeData";
$Ip2= "202.47.22.1/GetSomeDate";
Now I want to check the Ip1 whether it is running or not
if(Ip1=="running")
{
//call the web-service
}//if the Ip1 is not working
else if (Ip2=="running")
{
//call the web-service
}
else
{
//do nothing
}
How can i achieve that in Yii2?
Any help would be highly appreciated.

Answer 1

If web-service is under your control you could make an echo method ans simply check if it echoes back an answer to you using normal web-service call.
On the other hand you could use curl to check for an existing file or service on your web-server as in this post:
function isRunning($url=NULL)
{
if($url == NULL) return false;
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_TIMEOUT, 5);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$data = curl_exec($ch);
$httpcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
return ($httpcode>=200 && $httpcode<300) ? true : false;
}
Of course then your code looks something like this:
if(isRunning(ipAddress1))
{
//call the web-service
}//if the Ip1 is not working
else if (isRunning(ipAddress2))
{
//call the web-service
}
else
{
//do nothing
}
Where ipAddress is a file or path on that server. There are also a lot of other ways. You could use fsockopen if you have an open port, or use shell_exec to fetch ping result....
Hope my answer helped.