getCountByfield.php

<?php
function getCountByField($year,$field,$interessato_a = ''){
    $acceptable = ["citta","provincia"  ,"source_potential"  ,"campagna"  ];
    if(in_array($acceptable,strtolower($field))){
        $whereClause = ($interessato_a == '') ? '' : " and interessato_a = ".$interessato_a;
        return GQD('fl_leads_hrc',$field.", count(*) as cnt ","year(data_creazione) = ".$year." ".$whereClause." GROUP BY ".$field);
    }else{
        return null;
    }
}