在.js文件中调用URL参数 [英] Calling URL parameters within a .js file
问题描述
我在HTML文件中调用.js文件。在.js文件的URL上,我想要包含一个参数,该参数可以访问.js文件中的代码。
I am calling a .js file within a HTML file. On the URL to the .js file I want to include a parameter that will be accessable to the code INSIDE the .js file.
例如:
我希望能够在jQuery的帮助下将ID值传递给jquery_widget.js文件中的函数。这是怎么做到的?
I want to be able to pass the ID value to a function within the jquery_widget.js file, with the help of jQuery. How is this done?
感谢所有帮助!
推荐答案
你不能这样做:你必须在加载脚本之前声明变量。
示例:
You can't do it like that: you have to declare the variable before loading the script. Example:
<script type="text/javascript">
var foo= "bar";
</script>
<script type="text/javascript" href="path/to/js.js"></script>
通过这种方式,变量将为您的脚本做好准备。
in this way, the variable will be ready for your script.
另一个解决方案是使用php脚本,然后可以使用GET变量。
在这种情况下,请确保通过header()调用告诉您正在输出javascript
Another solution is to use a php script, that can then use the GET variable. In that case, make sure you tell via a header() call that you are outputting javascript
<script type="text/javascript" src="ip.php"></script>
和ip.php
<?
//"ip.php" example- display user IP address on any page
Header("content-type: application/x-javascript");
$serverIP=$_SERVER['REMOTE_ADDR'];
echo "document.write(\"Your IP address is: <b>" . $serverIP . "</b>\")";
?>
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