how to create json array of objects from php array in php? -

i having php array containing integer numbers below

array (     [0] => 41     [1] => 64     [2] => 51     [3] => 42     [4] => 65     [5] => 52     [6] => 66     [7] => 67 ) 

now want create json array of object this.

[{"assosiated_id": 41}, {"assosiated_id": 42}, {"assosiated_id": 51}, {"assosiated_id": 52}, {"assosiated_id": 64}, {"assosiated_id": 65}, {"assosiated_id": 66}, {"assosiated_id": 67}] 

i have tried converting array assosiative array encode json assosiative array can not have duplicate values.please tell best way it?

$a = [41, 64, 51, 42, 65, 52, 66, 67]; sort($a); $b = []; foreach ($a $v) {      $b[] = ['associated_id' => $v];  } echo json_encode($b); 

gives

[{"associated_id":41},{"associated_id":64},{"associated_id":51}, {"associated_id":42},{"associated_id":65},{"associated_id":52},{"associated_id":66},{"associated_id":67}] 

alternatively can use mark baker's oneliner in comments

if using older version of php may have code this

$a = array(41, 64, 51, 42, 65, 52, 66, 67); sort($a); $b = array(); foreach ($a $v) {      $b[] = array('associated_id' => $v);  } echo json_encode($b);