" ) . "#i"; $result = preg_match_all( $expression, $contents, $matches ); if ( $result ) { $actual_files = array(); $new_contents = ''; // Actual files foreach( $matches[1] as $file_name ) { if ( strpos( $file_name, '?' ) !== false ) { $temp_file = explode( '?', $file_name ); $file_name = $temp_file[0]; } $actual_files[] = WPTOUCH_DIR . $file_name; } // Compute hash $hash_string = ''; foreach( $actual_files as $file ) { if ( file_exists( $file ) ) { $hash_string = $hash_string . $file . filemtime( $file ); } else { $hash_string = $hash_string . $file; } } $cache_file_suffix = '/cache/' . 'wptouch-' . sha1( $hash_string ) . '.js'; $cache_file_name = WPTOUCH_BASE_CONTENT_DIR . $cache_file_suffix; if ( !file_exists( $cache_file_name ) ) { $cache_file = fopen( $cache_file_name, 'w+t' ); if ( $cache_file ) { global $wptouch_pro; foreach( $actual_files as $actual_file ) { $file_contents = $wptouch_pro->load_file( $actual_file ); fwrite( $cache_file, $file_contents . "\n" ); } fclose( $cache_file ); } } for ( $i = 0; $i < count( $matches[0] ) - 1; $i++ ) { $contents = str_replace( $matches[0][$i], '', $contents ); } $contents = str_replace( $matches[0][ count( $matches[0] ) - 1 ], "", $contents ); } return $contents; } add_action( 'wptouch_version_update', 'foundation_purge_concat' ); function foundation_purge_concat() { wptouch_remove_directory_files( WPTOUCH_BASE_CONTENT_DIR . '/cache/', 'js' ); }