Question: I'm developing a website based on WordPress source code through XAMPP. Sometimes I change the CSS code, scripts or something else and I notice my browser takes time to apply the modifications. This leads me to use multiple browsers to refresh one and if it doesn't apply the new styles I try the second one and it's always this.

There is some way of avoiding this problem?

Sometimes I'm changing code without noticing the previous modifications.

Answer: 
If you can write php, you can write:

```
<script src="foo.js<?php echo '?'.mt_rand(); ?>" ></script>
<link rel="stylesheet" type="text/css" href="foo.css<?php echo '?'.mt_rand(); ?>" />
<img src="foo.png<?php echo '?'.mt_rand(); ?>" />

```

It will always refresh!

EDIT: Of course, it's not really practical for a whole website, since you would not add this manually for everything.
In stead of link-tag in html-head to external css file, use php-include:

```
<style>
<?php
include("style.css");
?>      
</style>

```

Kind of hack, but works for me :)