In .htaccess (if using Apache): Options +Includes AddType text/html .shtml AddOutputFilter INCLUDES .shtml (NOTE: Pages must be .shtml (not .html) for this to work, with Apache.) (Configuration for non-Apache servers left as exercise for reader.) */ ## Includes $includes = [ '', '' ]; ## Action $outfile = ""; foreach ($includes as $file) { preg_match('/(src|href)="\/static\/(.+?)(\.[^\.\/]+?)"/i', $file, $m); $file_path = "{$static_root}/{$m[2]}{$m[3]}"; $href = VersionedAssetHref($m[2], $m[3]); $outfile .= preg_replace('/(src|href)="(.+?)"/', "$1={$href}", $file) . "\n"; } $inlined_asset_links_file_path = "{$include_dir}/inlined-asset-links.html"; file_put_contents($inlined_asset_links_file_path, $outfile); $updated_files[] = $inlined_asset_links_file_path; ?>