php - How to replace an element in an array -

i have collection collflokks in mongodb, sample document :-

{        "_id" : "b_8aul",        "f_name" : "pizza. hut",        "f_lat" : "22.7523513",        "f_lng" : "75.9225847",        "c_uid" : "33",        "f_type" : numberlong(3),        "members" : [              "42",              "43"        ]    }    

within "members" array , want add arrays {id:42,name:mark} , {id:43,name:hughes} i'm adding ids(eg.42,43). i'm concerned new data have new ids .please suggest.

earlier using code push members array:

$flokkcollection = 'collflokks'; $flokkcollection->update(        array("_id" => $f_handle),         array('$push' => array("members" => $u_id)) ); 

well if asking here "replacing existing data" need "loop" results collection , "replace" array content exists new format.

there smarter ways approach this, not giving required information in question, can answer in basic terms.

presuming have:

$required = array(    array(array("id" => "42"), array("name" => "mark")),    array(array("id" => "43"), array("name" => "hughes")) ); 

as input, this:

function mymapper($v) {     return $v["id"]; }  $mapped = array_map("mymapper",$required);  foreach( $mapped $value) {      $filtered = array_values(         array_filter($required,function($k) {             return $k["id"] == $value;         })     )[0];      collection.update(array(         array("members" => $value),         array('$set' => array(              "members.$" => $filtered         ))     )); } 

which should use positional $ operator find matched "position" of array element value used in "query" portion of update statement, in "update" portion of statement $set current array index new value @ "filtered" content index original input array.

outside of php. call these inner elements "objects" , not "arrays" php notation trait. key/value things "objects" , "lists" "arrays".