在外部JS文件中传递一个PHP变量[duplicate]

This question already has an answer here:

这个问题已经有了答案:

How to pass variables and data from PHP to JavaScript? 16 answers
如何将变量和数据从PHP传递到JavaScript?16个问题

I've read lots of thread on here but I am still unable to get a variable passed from PHP to an external JS file and wondered if someone could assist?

我已经在这里读了很多线程，但是我仍然无法将一个变量从PHP传递到一个外部的JS文件，我想知道是否有人能提供帮助?

In my PHP file I have the following;

在PHP文件中，我有以下内容;

<script type="text/javascript">
var pass_this_variable = <?php $company['website']; ?>;
</script>

<script type="text/javascript" src="/js/track.js"></script>

In the JS file I have the following;

在JS文件中，我有以下内容;

document.write('<IFRAME SRC="$company['website']" WIDTH="300" HEIGHT="400"></IFRAME>');

What I am trying to achieve is an IFRAME be opened and populated with what is contained within $company['website']. I know I can just use IFRAME directly in the PHP file, but this isn't what I have been tasked with for my homework. When I do use IFRAME directly in the PHP file it works fine, and if I specify a static URL in the JS file such as http://www.google.com this also works fine.

我想要实现的是一个IFRAME被打开并填充$company['website']中包含的内容。我知道我可以直接在PHP文件中使用IFRAME，但这并不是我的家庭作业的任务。当我在PHP文件中直接使用IFRAME时，它可以正常工作，如果我在JS文件(如http://www.google.com)中指定一个静态URL，也可以正常工作。

Can anyone assist? Thanks

谁能帮助?谢谢

EDIT:

编辑:

Thanks for the answers so far, however I'm still unable to get it working :(

到目前为止，谢谢你的回答，但是我还是无法让它发挥作用。

The frame that I have in track.php (or track.js) won't load the url thats specified in $company['website'], yet if I change it to http://www.google.com its working fine. For some reason the $company['website'] value isn't being passed :(

我跟踪的框架。php(或track.js)不会加载$company['website']中指定的url，但如果我将其更改为http://www.google.com，它会正常工作。由于某种原因，$company['website']的价值并没有被传递:

6 个解决方案

#1

if you want your external javascript to be dynamic you can make it a php file and give the correct header, example:

如果你希望你的外部javascript是动态的，你可以把它做成一个php文件并给出正确的头，例如:

<script type="text/javascript" src="/js/track.php"></script>

track.php

<?php
// javascript generator
Header("content-type: application/x-javascript");
?>
document.write('<IFRAME SRC="<?php echo $company['website'] ?>" WIDTH="300" HEIGHT="400"></IFRAME>');

#2

PHP file (don't forget echo and quoting):

PHP文件(不要忘记echo和引号):

<script type="text/javascript">
var pass_this_variable = '<?php echo $company['website']; ?>';
</script>

<script type="text/javascript" src="/js/track.js"></script>

JS file (use pass_this_variable instead):

JS文件(使用pass_this_variable):

document.write('<IFRAME SRC="'+pass_this_variable+'" WIDTH="300" HEIGHT="400"></IFRAME>');

#3

You should fix this line: var pass_this_variable = <?php echo $company['website']; ?>;

应该修改这一行:var pass_this_variable = ;

Adding echo and it should work

添加echo就可以工作了

#4

JavaScript provides you the functionality of ajax for the purpose of reading the PHP or text files. Why don't you create the HTML iframe inside a PHP file with your variables parsed and then take back the response and "throw" it inside a div.

JavaScript为您提供了用于读取PHP或文本文件的ajax功能。为什么不在PHP文件中使用解析的变量创建HTML iframe，然后取回响应并在div中“抛出”它呢?

#5

The code for your PHP file:

PHP文件的代码:

$cmp = $company['website'];
echo '<input type="hidden" id="cmp1" name="cmp1" value="' . $cmp . '" />';

The code for your JavaScript (.js) file to get the PHP file value:

获取PHP文件值的JavaScript (.js)文件代码:

var company = document.getElementById('cmp').value;

#6

Call a PHP file inside the JavaScript source. You can find the tutorial here:

在JavaScript源代码中调用一个PHP文件。你可以在这里找到教程:

http://www.javascriptkit.com/javatutors/externalphp.shtml.

http://www.javascriptkit.com/javatutors/externalphp.shtml。

So your code will be like this:

所以你的代码是这样的:

<script type="text/javascript" src="track.php?company=<?php echo $company['website']; ?>"></script>

In the PHP file you can fetch the value through $_GET variable and use it in the iframe. Make sure to sanitize the input.

在PHP文件中，可以通过$_GET变量获取值，并在iframe中使用它。确保对输入进行消毒。

#1