如何创建数据库并连接php?

General Q&A
1

目前php:

<?php
session_start();
    if(isset($_SESSION['list'])==false){
      $_SESSION['list']=[];
     }
    $queryString = $_SERVER['QUERY_STRING'];
    parse_str($queryString, $queryParams);
    if(($queryParams->sta)=='add'){
    $str=$queryParams->wd;
    array_push($_SESSION['list'], $str);
     }
?>
<!DOCTYPE html>
<html>
  <pre>
   <?php
     $see=($queryParams->sta);
      echo(implode("\n", $_SESSION['list']));
   ?>
</pre>
  <input placeholder='Input Message' id='1'/>
  <button onclick='s()'>Send</button>
  <script>
    function s(){
     var a=document.createElement("a");
     a.href=location.href.split("?")[0]+'?sta=add&wd='+document.getElementById('1').value;
    a.click();
      }
 </script>
</html>

要保存session数据的$_SESSION[“list”]到数据库并连接
(如果是sql数据库,谁能帮我把sql放到一个专门的网址上,我的设备不支持sql和ini)