<?php
function get_url()
{
    $host="localhost";
    $user="********";
    $pass="********";
    $db_name="********";
    $link=mysql_connect($host,$user,$pass);
    mysql_select_db($db_name,$link);

    $sql = mysql_query("SELECT * FROM `URL`") or die("Base error");
    $list_url = array();
    while($row = mysql_fetch_array($sql))
    {
        //echo $row['URL'];
        array_push($list_url, $row['URL']);
    }
    return $list_url;
}

$a = get_url();
echo $a[0];
?>