MarkupCache by Ryan Cramer

This core module enables you to cache any individual pieces of generated markup.

This core module enables you to cache any individual pieces of generated markup.

I'm working on a site now that has 500+ cities in a select pulldown generated from ProcessWire pages. Loading 500+ pages and creating the select options on every pageview isn't terribly efficient, but I didn't want to cache the whole template because it needed to support dynamic parameters in the URL. The solution was to cache just the code that generated the select options. Here's an example:
$cache = $modules->get("MarkupCache");
if(!$data = $cache->get("something")) {
// ... generate your markup in $data ...
echo $data;

I left the markup generation code (the part that gets cached) out of the example above to keep it simple. Below is the same example as above, but filled out with code that finds the pages and generates the markup (the part that gets cached):
$cache = $modules->get("MarkupCache");
if(!$data = $cache->get("city_options")) {
foreach($pages->find("template=city, sort=name") as $city) {
$data .= "<option value='{$city->id}'>{$city->title}</option>";
echo $data;

That was an example of a place where this module might be useful, but of course this module can used to cache any snippets of code. By default, it caches the markup for an hour. If you wanted to cache it for a longer or shorter amount of time, you would just specify the number of seconds as a second parameter in the get() call. For example, this would keep a 60-second cache of the data:
$cache->get("city_options", 60);

Install and use modules at your own risk. Always have a site and database backup before installing new modules.

Twitter updates

  • ProcessWire 3.0.185 (dev) core updates, plus new Session Allow module— More
    17 September 2021
  • Three new ProcessWire Textformatter modules: Find/Replace, Markdown in Markup, and Emoji— More
    3 September 2021
  • This week we have a new master version released after a year in the making. With nearly 40 pull requests, hundreds of new additions and more than 100 issue reports resolved, this new version has a ton of great new stuff— More
    27 August 2021

Latest news

  • ProcessWire Weekly #384
    In the 384th issue of ProcessWire Weekly we'll cover the latest core updates, introduce a new module called Session Allow, and highlight a new site of the week. Read on! / 18 September 2021
  • ProcessWire 3.0.184 new master/main version
    This week we have a new master/main version released after a full year in the making. As you might imagine, this new version has a ton of great new stuff and we’ll try to cover much of it here.
    Blog / 27 August 2021
  • Subscribe to weekly ProcessWire news

“I am currently managing a ProcessWire site with 2 million+ pages. It’s admirably fast, and much, much faster than any other CMS we tested.” —Nickie, Web developer