Personalisierte Hinweise mit einem individuellen Badge in WooCommerce

// Display Fields
add_action( 'woocommerce_product_options_general_product_data', 'woo_add_custom_fields' );

// Save Fields
add_action( 'woocommerce_process_product_meta', 'woo_add_custom_fields_save' );

function woo_add_custom_fields() {

  global $woocommerce, $post;
  
  echo '<div class="options_group">';
  
 // Display Woocommerce product badge box in product edit page
woocommerce_wp_text_input( 
	array( 
		'id'          => '_text_field', 
		'label'       => __( 'Badge text', 'woocommerce' ), 
		'placeholder' => 'Enter your badge text here',
		'desc_tip'    => 'true',
		'description' => __( 'Enter your badge text here', 'woocommerce' ) 
	)
); 
  echo '</div>';	
}
function woo_add_custom_fields_save( $post_id ){
	// Text Field
	$woocommerce_text_field = $_POST['_text_field'];
	if( !empty( $woocommerce_text_field ) )
		update_post_meta( $post_id, '_text_field', esc_attr( $woocommerce_text_field ) );
}

// Display Woocommerce product badge with custom text in single product page
add_action('woocommerce_before_add_to_cart_form', 'display_custom_field_value', 7 );
function display_custom_field_value(){
  $value = get_post_meta( get_the_ID(), '_text_field', true);
  if(strlen($value) != null && strlen($value) > 0) {
	echo '<div class="custom-badge">'.get_post_meta( get_the_ID(), '_text_field', true ).'</div>';
  }
}