function acf_excerpt($postid, $custom_field, $trim_length, $after){
	global $wp_query;
	global $post;
	$value = get_post_meta($postid, $custom_field, true);
	$custom_excerpt = preg_replace("#\[caption.*\](.*)\[\/caption\]#", "", $value);
	$new_excerpt = strip_tags(trim($custom_excerpt));
	$acf_excerpt = substr($new_excerpt,0,$trim_length);
	if ($acf_excerpt) {
		echo "<p class='text'>" . $acf_excerpt . $after . "</p>";
	}
}