Change Tax to Tax Rate in PDF Invoice

gistfile1.txt

/**
 * Change Tax to Tax Rate
 */
add_filter ( 'pdf_template_table_headings' , 'custom_pdf_table_headers' );

function custom_pdf_table_headers() {

    $headers =  '<table class="shop_table orderdetails" width="100%">' . 
                '<thead>' .
                '<tr><th colspan="7" align="left"><h2>' . esc_html__('Order Details', PDFLANGUAGE) . '</h2></th></tr>' .
                '<tr>' .
                '<th width="5%" valign="top" align="right">'  . __( 'Qty', PDFLANGUAGE )        . '</th>' .                   
                '<th width="50%" valign="top" align="left">'  . __( 'Product', PDFLANGUAGE )    . '</th>' .
                '<th width="9%" valign="top" align="right">'  . __( 'Price Ex', PDFLANGUAGE )   . '</th>' .
                '<th width="9%" valign="top" align="right">'  . __( 'Total Ex.', PDFLANGUAGE )  . '</th>' .
                '<th width="7%" valign="top" align="right">'  . __( 'Tax Rate', PDFLANGUAGE )   . '</th>' .
                '<th width="10%" valign="top" align="right">' . __( 'Price Inc', PDFLANGUAGE )  . '</th>' .
                '<th width="10%" valign="top" align="right">' . __( 'Total Inc', PDFLANGUAGE )  . '</th>' .
                '</tr>' .
                '</thead>' .
                '</table>';

    return $headers;

}

/**
 * Change Tax to Tax Rate
 */
add_filter ( 'pdf_template_line_output' , 'custom_pdf_lines', 10, 2 );

function custom_pdf_lines ( $line, $order_id ) {
    global $woocommerce;
    $order   = new WC_Order( $order_id );

    // Check WC version - changes for WC 3.0.0
    $pre_wc_30      = version_compare( WC_VERSION, '3.0', '<' );
    $order_currency = $pre_wc_30 ? $order->get_order_currency() : $order->get_currency();
                
    $pdflines  = '<table width="100%">';
    $pdflines .= '<tbody>';

    if ( sizeof( $order->get_items() ) > 0 ) {

        foreach ( $order->get_items() as $item ) {                  
            
            if ( $item['qty'] ) {
                
                $line = '';
                // $item_loop++;

                $_product   = $order->get_product_from_item( $item );
                $item_name  = $item['name'];
                $item_id    = $pre_wc_30 ? $item['variation_id'] : $item->get_id();

                $meta_display = '';
                if ( version_compare( WC_VERSION, '3.0', '<' ) ) {
                    $item_meta  = new WC_Order_Item_Meta( $item );
                    $meta_display = $item_meta->display( true, true );
                    $meta_display = $meta_display ? ( ' ( ' . $meta_display . ' )' ) : '';
                } else {
                    foreach ( $item->get_formatted_meta_data() as $meta_key => $meta ) {
                        $meta_display .= '<br /><small>(' . $meta->display_key . ':' . wp_kses_post( strip_tags( $meta->display_value ) ) . ')</small>';
                    }
                }

                if ( $meta_display ) {

                    $meta_output     = apply_filters( 'pdf_invoice_meta_output', $meta_display );
                    $item_name      .= $meta_output;

                }
                
                $line =     '<tr>' .
                            '<td valign="top" width="5%" align="right">' . $item['qty'] . ' x</td>' .
                            '<td valign="top" width="50%">' .  stripslashes( $item_name ) . '</td>' .
                            '<td valign="top" width="9%" align="right">'  .  wc_price( $item['line_subtotal'] / $item['qty'], array( 'currency' => $order_currency ) ) . '</td>' .                          
                            '<td valign="top" width="9%" align="right">'  .  wc_price( $item['line_subtotal'], array( 'currency' => $order_currency ) ) . '</td>' . 
                            '<td valign="top" width="7%" align="right">'  .  100 * ( $item['line_subtotal_tax']/$item['line_subtotal'] ) . '%' . '</td>' .           
                            '<td valign="top" width="10%" align="right">' .  wc_price( ( $item['line_subtotal'] + $item['line_subtotal_tax'] ) / $item['qty'], array( 'currency' => $order_currency ) ). '</td>' .
                            '<td valign="top" width="10%" align="right">' .  wc_price( $item['line_subtotal'] + $item['line_subtotal_tax'], array( 'currency' => $order_currency ) ). '</td>' .
                            '</tr>';
                
                $pdflines .= $line;
            }

        }

    }

    $pdflines .=    '</tbody>';
    $pdflines .=    '</table>';

    return $pdflines;
}