Ping functions in php, nodejs

Here are ping functions in other languages. For Excel based, follow the tutorial from here.

php
nodejs

PHP

<?php

//Define the variables
$host = '127.0.0.1';    // update ip-address here
$port = 80;             // update port number here
$waitTimeoutInSeconds = 1;
$output = '';
$status = 'IDLE';

//Setup timezone and date
//https://www.php.net/manual/en/timezones
date_default_timezone_set("Europe/Berlin");
$date = date('Y-m-d H:i:s');

//Ping test using fsockopen
//fsockopen(): Initiates a socket connection to the resource specified by hostname.
//@: disables the Warning
$fp = @fsockopen($host, $port, $errCode, $errStr, $waitTimeoutInSeconds);
if ($fp) {
    $status = 'ONLINE';
} else {
    $status = 'OFFLINE';
}

//Write the output to a file
if (!file_exists("output.md")) {
    $output = "| Host           | Port | Status | Performed at        |\r\n";
    $output .= "| -------------- | ---- | ------ | ------------------- |\r\n";
}
$output .= sprintf("| %s | %s   | %s     | %s |\r\n", $host, $port, $status, $date   );

file_put_contents("output.md", $output, FILE_APPEND);

//save the file and execute in terminal

NodeJS

Copy the contents to a file index.js

const exec = require("child_process").exec;
const fs = require("fs");

const hosts = ["192.168.91.175", "www.google.de", "127.0.0.1"];
const replyFromLocale = "Reply from";

const promises = [];

hosts.forEach(host => {
    promises.push(new Promise((resolve, reject) => {
        exec(`ping -n 1 -w 1000 ${host}`, (err, stdout, stderr) => {
            // successfull response: Reply from 142.250.186.78: bytes=32 time=10ms TTL=128
            // unsuccessfull:        Reply from 192.168.1.3: Destination host unreachable
            // host unreachable:     Ping request could not find host
            let status = "offline";
            let output = stdout.toString();
            let replyFromIndex = output.indexOf(replyFromLocale);
            if (replyFromIndex > 0 && output.substring(replyFromIndex).toUpperCase().indexOf("BYTES") > 0) {
                status = "online"
            }
            resolve(new Date().toISOString() + " " + host + " " + status)
        })
    }))
})

Promise.all(promises).then((results) => {
    fs.writeFile("ping-results.txt", results.join("\n"), (err) => {
        if (err) { console.log(err); }
    })
})

Execute the script using the command
```
node index.js
```