ACF hooks

acf-hooks.php

<?php
function acf_field_group_testing($content) {
	global $pagenow, $current_screen;

	if ($pagenow == 'post-new.php' || $pagenow == 'post.php' && isset($current_screen->post_type)) {
		$content = change_order_for_field_group($content, $current_screen->post_type);
	}

	return $content;
}
add_action('acf/get_field_group', 'acf_field_group_testing');

function change_order_for_field_group($content, $post_type) {
	$fg_order = get_redefined_field_group_ordering();

	// Check if there's an updated menu_order or position for this field_group
	$content['menu_order'] = isset($fg_order[$content['key']][$post_type]['menu_order']) ? $fg_order[$content['key']][$post_type]['menu_order'] : $content['menu_order'];
	$content['position']   = isset($fg_order[$content['key']][$post_type]['position']) ? $fg_order[$content['key']][$post_type]['position'] : $content['position'];

	return $content;
}

function get_redefined_field_group_ordering() {
	return array(
		// image field
		'group_563087c76ba2a' => array(
			'article' => array(
				'menu_order' => -4,
				'position' => 'acf_after_title'
			),
			'product' => array(
				'menu_order' => 4,
				'position' => 'normal'
			),
			'playlist' => array(
				'menu_order' => 2,
				'position' => 'acf_after_title'
			),
		),
		// teaser field
		'group_563087c76f81f' => array(
			'article' => array(
				'menu_order' => 5,
				'position' => 'normal'
			),
			'product' => array(
				'menu_order' => 2,
				'position' => 'normal'
			),
			'playlist' => array(
				'menu_order' => 1,
				'position' => 'normal'
			),
		),
	);
}