mysql - Javascript，AJAX 获取 MySQL 内容到 div

Question

我想将 MySql 数据库中的数据与一个或多个 div 中的默认内容进行交换，而无需重新加载页面。我在 Dreamweaver CS6 中使用“设置容器文本”javascript 行为插入了 PHP 代码，但没有成功。

如果有人能告诉我如何做到这一点，我将不胜感激。

Answer 1

save your php code in a file named getinfo.php then call it with ajax

<?php
  include("connectdatabase.php");

  $sql="SELECT * FROM table ORDER BY id DESC";
  $result=mysqli_query($con,$sql);

  $i = 1;
  while ($row = $result->fetch_assoc()) {
    echo "<tr>";
    echo "<td>" . $i . "</td>";
    echo "<td>" . $row["Name"] . "</td>";
    echo "<td>" . $row["Score"] . "</td>";
    echo "</tr>";
    $i++;
  }
  mysqli_close($con);
?>

在你的主文件中使用这个

<div class="scoreBoard"></div>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript">
  setInterval( refreshScoreBoard, 5000 );
  var inRequest = false;
  function refreshScoreBoard() {
    if ( inRequest ) {
      return false;
    }
    inRequest = true;
    var load = $.get('getinfo.php');
    $(".scoreBoard").html('Refreshing');
    load.error(function() {
      console.log( "Error" );
      // do something here if request failed
    });
    load.success(function( res ) {
      console.log( "Success" );
      $(".scoreBoard").html('<table>'+res+'</table>');
    });
    load.done(function() {
      console.log( "Completed" );
      inRequest = false;
    });
  }
</script>