Hi, thank you,
I have added this code to the Child Theme but I got no results.
// Fonction pour afficher le schema markup
function display_schema_markup() {
if (is_single()) {
global $post;
$schema_data = get_post_meta($post->ID, 'schema_markup', true);
if ($schema_data) {
echo $schema_data;
}
}
}
add_action('wp_head', 'display_schema_markup');