我试图从Posteta字段中获取复选框值，但无法将数组合并到单个结果中

$get_info_contact =     get_post_meta( $result, \'wpcf-society-info-contact\', true );

$combined = \'\';
                            foreach($get_info_contact as $contacts){
                                 foreach($contacts as $contact) {
                                     $combined .= \'and\';
                                    $combined .= $contact;
                                }
                            }
                            
                            echo $combined;

    Output: 
    
andalcorandpresident

    Expected output:
    
   alcor and president