Extend search in ACF fields

How can I extend WordPress search to all Advanced Custom Fields created?

To make ACF data available to wp_search, add this code to your plugin:

[php]
<?php
// search in all ACF Fields
add_filter(‘posts_join’, ‘wpster_acf_search_join’ );
function wpster_acf_search_join( $join ) {
global $wpdb;
if ( is_search() ) {
$join .=’ LEFT JOIN ‘.$wpdb->postmeta. ‘ ON ‘. $wpdb->posts . ‘.ID = ‘ . $wpdb->postmeta . ‘.post_id ‘;
}
return $join;
}
add_filter( ‘posts_where’, ‘wpster_acf_search_where’ );
function wpster_acf_search_where( $where ) {
global $pagenow, $wpdb;
if ( is_search() ) {
$where = preg_replace(
“/\(\s*”.$wpdb->posts.”.post_title\s+LIKE\s*(\'[^\’]+\’)\s*\)/”,
“(“.$wpdb->posts.”.post_title LIKE $1) OR (“.$wpdb->postmeta.”.meta_value LIKE $1)”, $where );
}
return $where;
}
add_filter( ‘posts_distinct’, ‘wpster_acf_search_distinct’ );
function wpster_acf_search_distinct( $where ) {
global $wpdb;
if ( is_search() ) {
return “DISTINCT”;
}
return $where;
}
?>
[/php]

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