php – how I compere these three arrays and make one array by finding same values

$label= array(“January-2021”, “December-2020”, “November-2020”, “October-2020”, “Sepetember-2020”, “August-2020”);

    $graph_ex =  array(
        array("label"=>"January-2021", "expense"=>'7000'),
        array("label"=>"December-2020", "expense"=>'5000'),
        array("label"=>"November-2020", "expense"=>'9000') 
    );

   

    $graph_in =  array(
        array("label"=>"January-2021", "income"=>'4000'),
        array("label"=>"December-2020", "income"=>'8000'),
        array("label"=>"October-2020", "income"=>'6000') 
    );

Ant solution