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

    // Create connection
    $conn = new mysqli($servername, $username, $password, $dbname);

    // Check connection
    if( $conn->connect_error ) {
        die("Connection failed: " . $conn->connect_error);
    }

    $sql = "SELECT `coordinates` FROM `MedMandatabase`";
    $result = $conn->query($sql);

    if( $result->num_rows > 0 ) {
        // Create output base
        $output = "<script> var locations = [";

        // output data of each row
        while( $row = $result->fetch_assoc() ) {
            echo "\"{$row['location']}\", ";
        }

        // Create output last and print
        $output = substr($output, 0, -2);
        $output .= "];</script>";
        echo $output;
    } else {
        echo "0 results";
    }

    $conn->close();
?>