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: 
```
<script src="foo.js?<?php echo date('YmdHis',filemtime('foo.js'));?>"></script>

```

It will refresh if modify.
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 :)