php - Remove key - value pairs from associative array -

i have query returns associative array. in array fields must remove before output. i've tried array_diff , unset, not having luck.

the beginning array:

array (   [id] => 13461   [ln] => 605717   [ptyp] => cond   [lag] => 86484   [st] => s   [lp] => 475000   [sp] => 475000   [olp] => 475000   [hsn] => 2033 ) 

i need remove 3 items, value different every instance (key same). here i've tried, output not i'm looking for.

    $result = array( ['id'] => '13461', ['ln'] => '605717', ['ptyp'] => 'cond', ['lag'] => '86484', ['st'] => 's', ['lp'] => '475000', ['sp'] => '475000', ['olp'] => '475000', ['hsn'] => '2033');     while ($row = $result) {          // remove empty values         $filtered = array_filter($row);          // array of disallowed keys         $disallowed = array($row['lp'],$row['lph'],$row['olp']);         foreach ($filtered $filter) {             # code...             unset($disallowed);         }             echo "<pre>";             print_r ($filter);             echo "</pre>";      } 

edit: items in $disallowed array not present in every row, if they must removed.

i hope understanding correct. remove elements key matches requirements.

$result = array( ['id'] => '13461', ['ln'] => '605717', ['ptyp'] => 'cond', ['lag'] => '86484', ['st'] => 's', ['lp'] => '475000', ['sp'] => '475000', ['olp'] => '475000', ['hsn'] => '2033');     while ($row = $result) {             // remove empty values         $filtered = array_filter($row);             // define array of disallowed keys         $disallowed = array('lp','lph','olp');         foreach ($disallowed $disallowed_key) {             // code...             unset($row["$disallowed_key"]); // remove element key not allowed         }         echo "<pre>";         print_r ($row); // output final result disallowed elements removed         echo "</pre>";      }