Question

例如我有这句话，'我喜欢弹钢琴'。它分为4个元素，将从数据库中取出（myphpadmin）。如何只有当我按下随机按钮时它才能成为它，然后它会随机播放。

   <body>
   <?php
// Connect to database server
mysql_connect("localhost", "root", "password") or die (mysql_error ());

// Select database
mysql_select_db("login") or die(mysql_error());

// Get data from the database depending on the value of the id in the URL
$strSQL = "SELECT * FROM sentences WHERE id 
    ORDER BY RAND() LIMIT 1;";

//create an array with numbers 1-4
$order = array(1,2,3,4);

//shuffle them in random order
shuffle($order);

$rs = mysql_query($strSQL);

// Loop the recordset $rs
while($row = mysql_fetch_array($rs)) {
    // Write the data of the person
    //Display all the array values from 0-3 (array index starts from 0)
    echo "<dt>Sentence:</dt><dd>" . $row[$order[0]] . " " . $row[$order[1]] . " " .                       
    $row[$order[2]] . " " . $row[$order[3]] ."</dd>";

    }
// Close the database connection
mysql_close();
?>

   <button onClick="Shuffle()">Scramble</button>

    </body>

Answer 1

您基本上需要使用jQuery执行此操作。

利用jQuery.get()对您的单独php脚本运行ajax请求。基本上你有一个PHP脚本，你的代码设置如下：

让我们称之为sentence.php。

<?php
// Connect to database server
mysql_connect("localhost", "root", "password") or die (mysql_error ());

// Select database
mysql_select_db("login") or die(mysql_error());

// Get data from the database depending on the value of the id in the URL
$strSQL = "SELECT * FROM sentences WHERE id 
    ORDER BY RAND() LIMIT 1;";

//create an array with numbers 1-4
$order = array(1,2,3,4);

//shuffle them in random order
shuffle($order);

$rs = mysql_query($strSQL);

// Loop the recordset $rs
while($row = mysql_fetch_array($rs)) {
    // Write the data of the person
    //Display all the array values from 0-3 (array index starts from 0)
    echo "<dt>Sentence:</dt><dd>" . $row[$order[0]] . " " . $row[$order[1]] . " " .                       
    $row[$order[2]] . " " . $row[$order[3]] ."</dd>";

    }
// Close the database connection
mysql_close();
?>

现在您已经拥有了html文件，我们可以调用index.html

<html>
    <head>
        <script src="https://code.jquery.com/jquery-1.10.2.min.js" type="text/javascript"></script>
        <script src="script.js" type="text/javascript"></script>
    </head>

    <body>
        <button id="showcontent">Scramble</button>
        <div id="content"></div>
    </body>

</html>

在script.js中，您正在运行jQuery。

$(document).ready(function() {

    $(document).on('click', '#showcontent', function(event) {
        event.preventDefault();

        $.get("sentence.php", function(data) {
            $("div#content").html(data);
        });
    });

});

来自数据库的onClick Shuffle按钮

1 个答案: