php - json_encode with a different result after array_filter -

i want json_encode return this

[{key: "value"},{key:"value"},...] 

instead this:

{"1": {key: "value"}, "2": {key: "value"}, ...} 

the result fine until did array_filter... strange...

function somefunction($id, $ignore = array()) {     $ignorefunc = function($obj) use ($ignore) {         return !in_array($obj['key'], $ignore);     };      global $db;      $q = "some query";      $rows = $db->givemesomerows();     $result = array();     if ($rows) {         // mapping i've done         $result = array_map(array('someclass', 'somemappingfunction'), $rows);         if (is_array($ignore) && count($ignore) > 0) {             /////// problem after line ////////             $result = array_filter($result, $ignorefunc);         }     }     return $result; } 

so again, if comment out array_filter want json_encode on whatever somefunction returns, if not json-object.

if var_dump $result before , after array_filter it's same type of php-array, no strings in keys , on.

you want array getting json object because array not start 0 trying using array_values reset array

example

$arr = array(1=>"a",2=>"fish"); print(json_encode($arr)); print(json_encode(array_values($arr))); 

output

{"1":"a","2":"fish"} ["a","fish"] 

replace

 $result = array_filter($result, $ignorefunc); 

with

  $result = array_filter($result, $ignorefunc);   $result = array_values($result);