如何在 html 中包含 javascript
[英]how to include javascript inside html
问题描述
Sorry for asking this silly question.
抱歉问了这个愚蠢的问题。
I got stuck to include a javascript file in my html page in a php project.我被困在php项目的html页面中包含一个javascript文件。 when I try this it works fine-当我尝试这个时它工作正常 -
<script type="text/javascript" src="script.js"></script>
But when I want to load the script.js file from my js directory it does not work.但是当我想从我的js目录加载script.js文件时，它不起作用。 I tried-我试过了-
<script type="text/javascript" src="js/script.js"></script>
NB: I have my js folder in the same myproject directory alongside my index.php and script.js is located inside the js folder.注意：我的js文件夹与我的index.php和script.js位于js文件夹内的同一个myproject目录中。
4 个解决方案
解决方案1
2 2020-11-26 22:29:55
Since there are subfolders in your project, to have js/script.js working you have to set your base path in your index.php like由于您的项目中有子文件夹，要让 js/script.js 正常工作，您必须在 index.php 中设置基本路径，例如
echo '<base href="http://localhost/myproject/">';
then the following line as a normal html然后以下行作为正常的 html
<script type="text/javascript" src="js/script.js"></script>
解决方案2
1 2020-11-26 22:21:21
You can't.你不能。 PHP doesn't execute Javascript code. PHP 不执行 Javascript 代码。 Since Javascript and PHP are both scripting languages.由于 Javascript 和 PHP 都是脚本语言。 You can use Jquery or AJAX or something like this to run js code您可以使用 Jquery 或 AJAX 或类似的东西来运行 js 代码
<script> var my_javascript_var = "<?php echo 'some value I need on the client side'; ?>"; alert (my_javascript_var ); </script>
解决方案3
0 2020-11-26 22:10:37
It might be access denied reading js folder or..anything really.读取 js 文件夹或..任何东西都可能被拒绝访问。 ...but the best you can do - open developer tools in your browser (hit F12 on Chrome), go to tab "Network" and refresh the page - you should see the reason why it doesnt load- status code will tell you. ...但是您可以做的最好的事情-在浏览器中打开开发人员工具（在 Chrome 上按 F12），go 到“网络”选项卡并刷新页面-您应该会看到它不加载的原因-状态代码会告诉您。
解决方案4
0 2020-12-07 07:58:38
Found out that I was calling my script in <head> tag of html which did not work for me.发现我在 html 的<head>标记中调用我的脚本，这对我不起作用。 But calling it before closing of <body> tag worked!但是在<body>标签关闭之前调用它有效！
Don't know why.不知道为什么。 Can anyone explain?谁能解释一下？
And obviously thanks everyone.显然感谢大家。
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