how can php get the user name

i want to get the esc_attr(um_user(‘display_name’)); to my new php for find the user data from sql this is my code
temp_test.php

<?php
$servername = "localhost";
$username = "root";
$password = "admin";
$dbname = "root";

$display_name = um_user('display_name');
//$divs = $html->find('a[title]');  
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
} 

$sql = "SELECT avgtemp FROM $display_name ORDER BY num DESC LIMIT 1";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
    // output data of each row
    if($row = $result->fetch_assoc()) {
         echo $row["avgtemp"];
    }
}
$conn->close();
?>

• This topic was modified 6 years, 11 months ago by kang0905.
• This topic was modified 6 years, 11 months ago by kang0905.
• This topic was modified 6 years, 11 months ago by kang0905.