PHP MySQLnd Native Driver

<?php
$boolHasMySQL = false;
$boolHasMySQLi = false;
$boolHasMySQLnd = false;
$strSentence = '<p>';
if (function_exists('mysql_connect')) {
    $boolHasMySQL = true;
    $strSentence.= "(Deprecated) MySQL <b>is installed</b> ";
} else
    $strSentence.= "(Deprecated) MySQL <b>is not</b> installed ";
if (function_exists('mysqli_connect')) {
    $boolHasMySQLi = true;
    $strSentence.= "and the new (improved) MySQL <b>is installed</b>. ";
} else
    $strSentence.= "and the new (improved) MySQL <b>is not installed</b>. ";

if (function_exists('mysqli_get_client_stats')) {
    $boolHasMySQLnd = true;
    $strSentence.= "This server is using MySQLnd as the driver.";
} else
    $strSentence.= "This server is using libmysqlclient as the driver.";

echo $strSentence,'</p>';