// WOOCOMMERCE CHEKCOUT FIELD LABELS INSIDE INPUT BOXES
add_filter( 'woocommerce_checkout_fields', 'wptu_labels_inside_checkout_fields', 9999 );
function wptu_labels_inside_checkout_fields( $fields ) {
foreach ( $fields as $section => $section_fields ) {
foreach ( $section_fields as $section_field => $section_field_settings ) {
$fields[$section][$section_field]['placeholder'] = $fields[$section][$section_field]['label'];
$fields[$section][$section_field]['label'] = '';
}
}
return $fields;
}