Javascript 和 PHP (window.open) [英] Javascript and PHP (window.open)

问题描述

因此，在我的网站中，我有一个新闻系统，可以选择编辑和删除管理员想要的新闻.

好吧，我通过使用:

href="noticiaEditarForm.php?id_noticia=<?php echo $id ?>">Editar</a>

然后是另一个页面上的 $_GET.

然而，这不是我想要的编辑窗口.因此，我一直在探索一种使用 JavaScript 将包含新闻表 (MySQL) 主键的 PHP 变量发送到弹出窗口的方法.但这就是事情，它只会返回它从查询中获得的第一个值......(即如果我点击编辑第 3 篇文章，它会编辑我的第 1 篇文章.总是.)

这是我当前的代码:

<?php包括('conn/conn.php');mysql_select_db($bd, $conn);$resultado = mysql_query("SELECT * FROM noticia INNER JOIN user ON noticia.id_user=user.id_user ORDER BY id_noticia DESC");而 ($linha = mysql_fetch_array($resultado)) {回声<h1>".$linha['titulo'] ."</h1>";echo " 发布者 " .$linha['username']."上 " .".$linha['data'] .</y>"."</i>";回声<p>";回声 $linha['texto'];$id = $linha['id_noticia'];如果(isset($_SESSION['admin'])){?><div class="noticiasOpcao"><a href="" onClick="open_win_editar()">Editar</a>&nbsp;&nbsp;&nbsp;&nbsp;<a onclick="return confirm('Are you sure?')" href="noticiaApagar.php?id_noticia=<?php echo $id ?>">Apagar</a>
<?php}}?><脚本语言="javascript">函数 open_win_editar() {窗口.打开("noticiaEditarForm.php?id_noticia=<?php echo $id; ?>","编辑通知",位置=1，状态=1，滚动条=1，宽度=800，高度=455");}<?php mysql_close($conn);?>

我的观点是然后使用另一个查询来获取文章的标题和文本，以在所见即所得的编辑器上显示.

谁能指出我的缺陷?

解决方案

这段代码:

发生在 PHP while 循环之外，因此 $id 的值将是设置为 $id 的最后一个值在循环.因此 JavaScript 代码将始终打开相同的链接.

如果您需要 PHP 循环中的代码为 JavaScript 指定 $id 值，那么您可以将其作为参数传递给 JavaScript 函数.像这样:

所以在循环中渲染锚标记的代码会像这样传递参数:

<a href="" onClick="open_win_editar(<?php echo $id; ?>)">Editar</a>

然后呈现的输出将在每个 a 标签上包含记录特定的 $id 值，供客户端上的 JavaScript 代码使用.

So, in my website, I have a news system which has an option to edit and delete the news the administrator desires.

Well, I got the edit part right by using:

href="noticiaEditarForm.php?id_noticia=<?php echo $id ?>">Editar</a>

And then a $_GET on the other page.

However, this is not how I desire my editing window. Therefore, I have been exploring a way to send the PHP variable that contains the primary key for the news table (MySQL) to a popup window, using JavaScript. But that's just the thing, it will only return the 1st value it gets from the query... (i.e If I click to edit the 3rd article, it edits my 1st one. Always.)

Here is my current code:

<div class="noticias">
<?php
    include('conn/conn.php');
    mysql_select_db($bd, $conn);

    $resultado = mysql_query("SELECT * FROM noticia INNER JOIN user ON noticia.id_user=user.id_user ORDER BY id_noticia DESC");

    while ($linha = mysql_fetch_array($resultado)) {
        echo "<h1>" . $linha['titulo'] . "</h1>";
        echo "<i>Posted by " .$linha['username']. " on " . "<y>" . $linha['data'] . "</y>" . "</i>";
        echo "<p>";
        echo $linha['texto'];

        $id = $linha['id_noticia'];

        if (isset($_SESSION['admin'])) {
?>
            <div class="noticiasOpcao">
                <a href="" onClick="open_win_editar()">Editar</a>
                &nbsp;&nbsp;&nbsp;&nbsp;
                <a onclick="return confirm('Are you sure?')" href="noticiaApagar.php?id_noticia=<?php echo $id ?>">Apagar</a>
            </div>
<?php
        } 
    }
?>

<script language="javascript">
    function open_win_editar() {
        window.open (
            "noticiaEditarForm.php?id_noticia=<?php echo $id; ?>",
            "Editar notícia",
            "location=1, status=1, scrollbars=1, width=800, height=455"
        );
    }
</script>

<?php mysql_close($conn); ?>

</div>

My point is to then use another query to get the title and text of the article to display on an WYSIWYG editor.

Can anyone point out my flaw?

解决方案

This code:

<script language="javascript">
    function open_win_editar() {
        window.open ("noticiaEditarForm.php?id_noticia=<?php echo $id; ?>", "Editar notícia", "location=1, status=1, scrollbars=1, width=800, height=455");
     }
</script>

Is happening outside of the PHP while loop, so the value of $id will be the last value that was set to $id in the loop. So the JavaScript code will always open the same link.

If you need the code within the PHP loop to specify the $id value for the JavaScript, then you can pass it as an argument to the JavaScript function. Something like this:

<script language="javascript">
    function open_win_editar(targetID) {
        window.open ("noticiaEditarForm.php?id_noticia=" + targetID, "Editar notícia", "location=1, status=1, scrollbars=1, width=800, height=455");
     }
</script>

So the code rendering the anchor tags in the loop would pass the argument like this:

<a href="" onClick="open_win_editar(<?php echo $id; ?>)">Editar</a>

The rendered output would then contain the record-specific $id value on each a tag to be used by the JavaScript code on the client.

这篇关于Javascript 和 PHP (window.open)的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！