PHP - Do Anybody Know How To Write Php Script For Connecting Perforce?

<?php

$host = "localhost";
$my_user = "root";
$my_password = "";
$my_db = "notes_db"

$con = mysqli_connect("localhost","my_user","my_password","my_db");

echo ("Connected Successfully");
?>

Windows 2012 R2 Web Farm

IIs 8.5

PHP 7.2

I am trying to create a logon page using PHP  create a database on my SQL 2014 server.

Installed the PHP SQL Server Drivers for PHP 7.2

<?php
// Server in the this format: <computer>\<instance name> or
// <server>,<port> when using a non default port number
$server = 'SQLC,1433';

// Connect to MSSQL
$link = mssql_connect($server, 'phpuser', 'xxxxxxxxxxxxxx');

if (!$link) {
    die('Something went wrong while connecting to MSSQL');
}
?>

I get an HTTP 500 internal server error cant get past this one

Any thing else I can provide to help us fix this let me know

Thank you

Tom

Fatal error: Uncaught exception 'Google_Auth_Exception' with message 'Error refreshing the OAuth2 token, message: '{ "error" : "invalid_grant" }'' in /home/public_html/cal_test/google-api-php/src/Google/Auth/OAuth2.php:341 Stack trace: #0 /home/public_html/cal_test/google-api-php/src/Google/Auth/OAuth2.php(300): Google_Auth_OAuth2->refreshTokenRequest(Array) #1 /home/public_html/cal_test/google-api-php/src/Google/Auth/OAuth2.php(230): Google_Auth_OAuth2->refreshTokenWithAssertion() #2 /home/public_html/cal_test/google-api-php/src/Google/Service/Resource.php(171): Google_Auth_OAuth2->sign(Object(Google_Http_Request)) #3 /home/public_html/cal_test/google-api-php/src/Google/Service/Calendar.php(1133): Google_Service_Resource->call('list', Array, 'Google_Service_...') #4 /home/public_html/cal_test/index.php(34): Google_Service_Calendar_CalendarList_Resource->listCalendarList() #5 {main} thrown in /home/public_html/cal_test/google-api-php/src/Google/Auth/OAuth2.php on line 341

<?php

error_reporting(-1);
ini_set('display_errors', 'On');


require_once "google-api-php/src/Google/Client.php";
require_once "google-api-php/src/Google/Service/Calendar.php";


// Service Account info
$client_id = 'CLIENT_ID';
$service_account_name = 'EMAIL';
$key_file_location = 'FILE_LOC';

// Calendar id
$calName = 'CAL_ID';


$client = new Google_Client();
$client->setApplicationName("Calendar test");

$service = new Google_Service_Calendar($client);

$key = file_get_contents($key_file_location);
$cred = new Google_Auth_AssertionCredentials(
 $service_account_name,
 array('https://www.googleapis.com/auth/calendar.readonly'),
 $key
);

$client->setAssertionCredentials($cred);

$cals = $service->calendarList->listCalendarList();
//print_r($cals);
//exit;

$events = $service->events->listEvents($calName);

foreach ($events->getItems() as $event) {
 echo $event->getSummary();
}  
  ?>

Hi all.

My database just stopped connecting? I have tried everything i could but no way!
When i login to the page, it shows just blank page. So i started trying to figure out what could be the problem by disabling some included files.
Then i discovered the problem is from my database connection.
I re-uploaded the files and still not working (still blank)

What could have happened and what can i do?

I even went as far as creating the database connection inside the page to see if it will work but still no way!

Thanks