innerHTML在窗口加载时不会改变

Question

Below is the layout of my page. 以下是我页面的布局。

php function to fetch data from db
css that has got some animations for my divs
<script type="text/javascript">
    window.onload = function()
    {
        var myVar = <?php echo callFunctionFromPHP() ?>;
        alert(myVar);
        document.getElementById("waiting").innerHTML = "Text after load";
    }
</script>
<body>
<div id="waiting">Current text</div>

When the page loads, I intend for 'Current text' to be shown and after having loaded page, I want javascript to call php, which internally will fetch data from db, and once done I want to change the div's text to new text. 页面加载时，我希望显示“当前文本”，加载页面后，我希望javascript调用php，它将在内部从db获取数据，完成后，我想将div的文本更改为新文本。

But this is not working. 但这是行不通的。 Although I know that the javascript function is getting called because if in my JS function I only keep the innerHTML line then the page loads with the 'after' text. 尽管我知道正在调用javascript函数，因为如果在我的JS函数中，我仅保留innerHTML行，则该页面将加载“之后”文本。 Also, I know that my php function is working fine because when I do 'inspect page source' it shows the correct data from database. 另外，我知道我的php函数工作正常，因为当我“检查页面源代码”时，它将显示数据库中的正确数据。

but my alert command doesnt work. 但我的警报命令不起作用。 Can someone help me with what is wrong here? 有人可以帮我解决这里的问题吗？

Note : I understand that this is perhaps not the best coding practice (calling php from js function like this), but I am only prototyping for now. 注意：我知道这可能不是最佳编码实践（像这样从js函数调用php），但是我现在只是原型。

Answer 1

您将需要用双引号将输出换行：

var myVar = "<?php echo callFunctionFromPHP() ?>";

innerHTML在窗口加载时不会改变

问题描述

1 个解决方案

解决方案1
2 2019-02-05 21:11:26

innerHTML在窗口加载时不会改变

问题描述

1 个解决方案

解决方案1 2 2019-02-05 21:11:26

解决方案1
2 2019-02-05 21:11:26