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WordPress Plugin: Filename-based cache busting for scripts/styles.
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| <?php | |
| /** | |
| * Plugin Name: Filename-based cache busting | |
| * Version: 0.3 | |
| * Description: Filename-based cache busting for WordPress scripts/styles. | |
| * Author: Dominik Schilling | |
| * Author URI: https://dominikschilling.de/ | |
| * Plugin URI: https://gist.github.com/ocean90/1966227/ | |
| * | |
| * License: GPLv2 or later | |
| * License URI: http://www.gnu.org/licenses/gpl-2.0.html | |
| * | |
| * | |
| * Extend your .htaccess file with these lines: | |
| * | |
| * <IfModule mod_rewrite.c> | |
| * RewriteEngine On | |
| * RewriteBase / | |
| * | |
| * RewriteCond %{REQUEST_FILENAME} !-f | |
| * RewriteCond %{REQUEST_FILENAME} !-d | |
| * RewriteRule ^(.+)\.(.+)\.(js|css)$ $1.$3 [L] | |
| * </IfModule> | |
| */ | |
| /** | |
| * Moves the `ver` query string of the source into | |
| * the filename. Doesn't change admin scripts/styles and sources | |
| * with more than the `ver` arg. | |
| * | |
| * @param string $src The original source. | |
| * @return string | |
| */ | |
| function ds_filename_based_cache_busting( $src ) { | |
| // Don't touch admin scripts. | |
| if ( is_admin() ) { | |
| return $src; | |
| } | |
| $_src = $src; | |
| if ( '//' === substr( $_src, 0, 2 ) ) { | |
| $_src = 'http:' . $_src; | |
| } | |
| $_src = parse_url( $_src ); | |
| // Give up if malformed URL. | |
| if ( false === $_src ) { | |
| return $src; | |
| } | |
| // Check if it's a local URL. | |
| $wp = parse_url( home_url() ); | |
| if ( isset( $_src['host'] ) && $_src['host'] !== $wp['host'] ) { | |
| return $src; | |
| } | |
| return preg_replace( | |
| '/\.(js|css)\?ver=(.+)$/', | |
| '.$2.$1', | |
| $src | |
| ); | |
| } | |
| add_filter( 'script_loader_src', 'ds_filename_based_cache_busting' ); | |
| add_filter( 'style_loader_src', 'ds_filename_based_cache_busting' ); |
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