php - select where clause in mysql when dynamic multiple values coming -

i able query when single value coming $mpfid. getting multiple values dynamically drop down. how query when multiple $mpfid values coming.

$mpfid= ['2','9','1','3'];

here have added 4 values in array based on user selection may come 1 or more.

$mpfid= ['2','9','1','3'];     function getpfrelatedreleaseidfromsprint($mpfid)         {                      $getquery="select * sprint `platform_id`='".$mpfid."'";             $result=mysql_query($getquery,$this->dbcon);                           return $result;         } 

please me how query when multiple values coming

you can use in in where clause :

select * sprint `platform_id` in ('" . implode("','",$mpfid) . "')