For your Cloudlinux or a different Redhat based server, add the appropriate version repo below to your server.

#RHEL 7 and Oracle Linux 7

#curl https://packages.microsoft.com/config/rhel/7/prod.repo | sudo tee /etc/yum.repos.d/mssql-release.repo

#RHEL 8 and Oracle Linux 8

# curl https://packages.microsoft.com/config/rhel/8/prod.repo | sudo tee /etc/yum.repos.d/mssql-release.repo

#RHEL9

# curl https://packages.microsoft.com/config/rhel/9/prod.repo | sudo tee /etc/yum.repos.d/mssql-release.repo

Delete any potentially conflicting packages from the system.

# yum remove unixODBC-utf16 unixODBC-utf16-devel

Install odbc package from Microsoft repo

ACCEPT_EULA=Y yum install -y msodbcsql17 unixODBC-devel

Go to the PHP selector settings of the hosting where you will connect to Microsoft SQL Server with your PHP codes and activate the pdo, pdo_odbc, pdo_sqlsrv, sqlsrv plugins and optionally the pdo_dblib plugin.

You need to include the package you installed for Cloudlinux OS in the cagefs structure. This will not be necessary on other RH-based systems…

# cagefsctl –addrpm unixODBC

# cagefsctl –force-update

Then test your connection with a test script.

Sample Code

<?php

    $server = "";
    $database = "";
    $kullaniciadi = "";
    $sifre = "";
    $Karakter = "utf-8";
    $Port = "1433";


    try
    {
      
        $db = new PDO("sqlsrv:Server=$server;Database=$database;", "$kullaniciadi", "$sifre");
        //$db = odbc_connect("Driver={SQL Server};Server=$server,$Port;Database=$database;",  $kullaniciadi, $sifre);
 
        
        if ($db)
    	    echo "success"; 

   }
    catch (Exception $e)
    {
        //Eğer bağlantı sırasında bir hata oluşursa ekrana oluşan hata bastırılacaktır.
        echo $e->getMessage();
    }
     exit;

?>