I have created a simple cms to build simple websites for my customers. The cms is database-driven. I would like to make a offline/cache/static copy of the websites, to increase performance.
Is there any php script available, that traverses a website and creates a static version?
You can do many things to optimize the sites, most do not traverse the site and create a cache, you could write your own class which is quite simple or you could use one already written:
http://www.jongales.com/blog/2009/02/18/simple-file-based-php-cache-class/
The way it would work is the first time someone visits the live page create a cache if the cache does not exist if however the cache does exist serve up the cache version
ob_start();, ob_get_contents(); and ob_end_clean(); php.net/manual/en/function.ob-start.phpMake one yourself and integrate it into your simple CMS?
There is a lot of possibilities which you can use like Memcache, APC and just plain static files generated by your application.
Your question is pretty vague since you haven't provided any real problems with writing your cache. But besides the two first options I mentioned, a simple static file cache can be accomplished with file_get_contents, file_put_contents and filemtime
Example (loose):
<?php
if( file_exists("/cache_dir/".$page_name) && (time() - filemtime("/cache_dir/".$page_name)) > 300)
{
$contents = file_get_contens("/cache_dir/".$page_name);
}
else
{
// getting the page contents
ob_start();
//output your page
$contents = ob_get_clean();
file_put_contens($contents, "/cache_dir/".$page_name);
}
echo $contents;
?>
It's a short and loosely created example but it might help you get an idea how to make a solution that fits your application.
Caching, especially when it's offline, is done by most modern browsers automatically. Since PHP is a server-side language, it's restricted to only effect stuff on the "online" end. If you want to increase performance though, you can try automatically minifying your resources via PHP.
If you're super-intent on storing data offline, you could see what you can fit into cookies, but I don't really see that as a conventional method.
EDIT:
If you mean making static pages on the server side, then yes. With the right permissions, you can create and edit pages with fopen() and related functions.
