php - Replace array keys -


i have array json example .i'm trying replace numeric key ..."conn":{"1":{"... string key such "node".

for example want create this:

{ "level": [     {         "main": "472321514",         "main_lat": "39.1057579",         "main_lon": "26.5451331",         "conn": {             "node": {                 "id": "599416249",                 "coords": {                     "lat": "39.1055889",                     "lon": "26.5452403"                 },                 "distance": 0.0209442235276             },...

before json encoding script is:

foreach ($ways $w){         $nd=$w->nd;         foreach ($nd $w2){                  $nodes_array[]=(string)$w2->attributes()->ref;             }             for($ww=0;$ww<count($nodes_array);$ww++){                 $nodes_array2[$bb]['main'] = $nodes_array[$ww];                 for($gg=0;$gg<count($node_content);$gg++){                     if($node_content[$gg]['id']==$nodes_array2[$bb]['main']){                      $nodes_array2[$bb]['main_lat']= $node_content[$gg]['lat'];                     $nodes_array2[$bb]['main_lon']= $node_content[$gg]['lon'];                     }                 }                 $nodes_array2[$bb]['conn'] = array_diff($nodes_array, array($nodes_array[$ww]));                     for($cc=0;$cc<count($nodes_array2[$bb]['conn']);$cc++){                     for($gg=0;$gg<count($node_content);$gg++){                         if($node_content[$gg]['id']==$nodes_array2[$bb]['conn'][$cc]){                      $nodes_array2[$bb]['conn'][$cc]=array(                           'id'=>$node_content[$gg]['id'],                           'coords'=>array(                               'lat'=>$node_content[$gg]['lat'],                               'lon'=>$node_content[$gg]['lon'],                               ),                          'distance'=>distance($nodes_array2[$bb]['main_lat'],$nodes_array2[$bb]['main_lon'],$node_content[$gg]['lat'],$node_content[$gg]['lon'],"k"),                           );                         }                     }                 }                 $bb++;             }                unset($nodes_array);         }


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