/** * Adds custom currency. */ add_filter( 'woocommerce_currencies', function ( $currencies ) { $currencies['ABC'] = esc_html__( 'My currency' ); return $currencies; } ); /** * Sets custom currency symbol. */ add_filter( 'woocommerce_currency_symbol', function ( $currency_symbol, $currency ) { switch ( $currency ) { case 'ABC': $currency_symbol = '$'; break; } return $currency_symbol; }, 10, 2 );