/********************************************\
|* option lecture seule (readonly) pour ACF *|
|* (uniquement pour types text et textarea) *|
\********************************************/

function add_readonly_and_disabled_to_fields($field) {
	acf_render_field_setting($field, array(
		'label' => __("Read Only?",'acf'),
		'instructions' => '',
		'type' => 'radio',
		'name' => 'readonly',
		'choices' => array(
			0 => __("No",'acf'),
			1 => __("Yes",'acf'),
		),
		'layout' => 'horizontal',
	));
}
add_action('acf/render_field_settings', 'add_readonly_and_disabled_to_fields');