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manifest / performance / tiny-cache

Tiny cache (MU)

🚄 Cache WordPress post content, template part, translations and nav menu output in persistent object cache

by szepeviktor · github.com/szepeviktor/tiny-cache · website

★ 27stars

Install

Download source zip No release zip yet

This is the repository archive. It installs, but the folder name will carry the branch suffix and updates will not flow.

Install straight from GitHub with WP-CLI:

wp plugin install https://github.com/szepeviktor/tiny-cache/archive/refs/heads/master.zip
No built-in updater. New versions won't appear under Dashboard → Updates. Install new releases yourself, or let Git Updater track the repository.
Readme github.com/szepeviktor/tiny-cache ↗

Cache post content, translations and nav menu output in persistent object cache.

This MU plugin works well in production providing you understand its source code (133 sloc).

WordPress performance

Please see https://github.com/szepeviktor/wordpress-website-lifecycle/blob/master/WordPress-performance.md

Usage

Of course you need persistent object cache. Consider Redis server and wp-redis plugin.

Replace the_content() calls in your theme.

NOTICE Replace only argument-less calls! $more_link_text and $strip_teaser are not supported.

find -type f -name "*.php" | xargs -r -L 1 sed -i -e 's|\bthe_content();|the_content_cached();|g'

No-cache situations

  • wp_suspend_cache_addition( true );
  • define( 'DONOTCACHEPAGE', true );

Prevent missing plugin

Protection against plugin deactivation.

Copy these to your theme's functions.php.

    if ( ! function_exists( 'the_content_cached' ) ) {
        function the_content_cached( $more_link_text = null, $strip_teaser = false ) {
            the_content( $more_link_text, $strip_teaser );
        }
    }
    if ( ! function_exists( 'get_the_content_cached' ) ) {
        function get_the_content_cached( $more_link_text = null, $strip_teaser = false ) {
            return get_the_content( $more_link_text, $strip_teaser );
        }
    }
    if ( ! function_exists( 'get_template_part_cached' ) ) {
        function get_template_part_cached( $slug, $name = null, $version_hash = '' ) {
            get_template_part( $slug, $name );
        }
    }

Little sisters

  1. Tiny navigation menu cache - for nav menu output
  2. Tiny translation cache - for translations (.mo files)

Alternative

https://github.com/Rarst/fragment-cache