向PHP数组中的特定键位置添加值

我正在使用一个库，除其他参数外，它接受一个名称数组，并创建一个<select>组合框，其中包含以该数组中命名的<option>元素。为<option>节点的value属性赋取取名称所在索引的值。因此，例如，如果数组的索引0包含"foo"，那么它将创建如下所示的标记:<option value="0">foo</option>。作为参考，下面是该库的代码:

function generateSelect(objDimensionAssoc, obj, select_name, label_name, function_name, state, DivAlignement)
{
    //Valid object before
    sChaine = "";
    if(  (obj != null) && (obj != undefined) && (obj != "") && (parseInt(countObject(obj)) > 0) ){
        if( state == 'show' ){
            sChaine +="<label for='"+select_name+"' ><span>"+label_name+"</span></label>'n";
            sChaine +="<div class='"+DivAlignement+"'>'n";
            if(function_name != "")
                sChaine +="<select name='"+select_name+"' id='"+select_name+"' onchange='"+function_name+"' >'n";
            else
                sChaine +="<select name='"+select_name+"' id='"+select_name+"'>'n";
            //lang = variable reconnu dans tout les pages
            for (var x=0; x < obj.length; x++){
                //One or two domentionnal array
                if(obj[x] != null){
                    if(objDimensionAssoc == "1"){
                        if(chaineUrl){
                            sChaine += compare_and_create( x, obj[x], chaineUrl[select_name], select_name);
                        } else {
                            sChaine += compare_and_create( x, obj[x], "", select_name);
                        }
                    } else { 
                        if(chaineUrl){  
                            sChaine += compare_and_create( x, obj[x][lang], chaineUrl[select_name], select_name);
                        } else {
                            sChaine += compare_and_create( x, obj[x][lang], "", select_name);
                        }
                    }
                }
            }
            sChaine +="</select>'n";
            sChaine +="</div>'n";
        }
        return(sChaine);
    } else {
        //empty array
        if( state == 'show' ){
            sChaine +="<label for='"+select_name+"' ><span>"+label_name+"</span></label>'n";
            sChaine +="<div class='"+DivAlignement+"'>'n";
            sChaine +="<select name='"+select_name+"' id='"+select_name+"' disabled='true' >'n";
            sChaine +="<option value='0'>&nbsp;</option>'n";
            sChaine +="</select>'n";
            sChaine +="</div>'n";
        }
        return(sChaine);
    }
}
function compare_and_create( key, innerText, string_compare,select_name)
{
    if(key == string_compare){
        return ("<option value='"+key+"' selected='selected'>"+innerText+"</option>'n");
    } else {
        return ("<option value='"+key+"'>"+innerText+"</option>'n");
    }
}

这里是我调用它的地方:

myDiv = document.getElementById('tmp_stationDiv');
var stationsList = new Array();
stationsList = JSON.parse(<?php getStationList($regions); ?>);
myDiv.innerHTML = generateSelect("1",stationsList,
                            "slt_idStations",message["txt_choose_station"][lang],
                            '','show','blockDiv');

这是函数getStationList()的代码:

function getStationList($regions)
{
    $slt_nomStations = (isset($_GET["slt_nomStations"]) ? $_GET["slt_nomStations"] : 0);;
    $db = ConnectionFactory::getFactory()->getConnection();
    $stmt = $db->prepare("SELECT DISTINCT S.station_id, S.name, SA.sub_area_name FROM dev.Station AS S INNER JOIN dbo.SubArea AS SA ON S.sub_area_id = SA.sub_area_id INNER JOIN data.MonthlyNormalData as MND ON MND.station_id = S.station_id WHERE sub_area_name = '$regions[$slt_nomStations]' AND value IS NOT NULL ORDER BY S.name ASC");
    $stmt->execute();
    $stations = array();
    $lastStationName = "";
    while ($row = $stmt->fetch())
    {
        if ($lastStationName != $row['name'])
        {
            array_push($stations, $row['name']);
            $lastStationName = $row['name'];
        }
    }
    $newJSArray = json_encode($stations);
    echo json_encode($newJSArray);
}

现在这工作得很好。例如，getStationList()的输出是"['"LA GRANDE RIVIERE A'"]"，然后我使用JSON.parse()将其转换为javascript数组。

不幸的是，与<option>节点相关联的value将是0,1,2，…， n，其中n为站点数- 1。我想将站点的名称与其站点ID(我从数据库中恢复)关联起来，因此与<option>节点关联的value将是这些ID。要做到这一点，我想我需要在相应ID的索引处推送站点的名称。我已经尝试过这样做与以下修改getStationList():

function getStationList($regions)
{
    $slt_nomStations = (isset($_GET["slt_nomStations"]) ? $_GET["slt_nomStations"] : 0);;
    $db = ConnectionFactory::getFactory()->getConnection();
    $stmt = $db->prepare("SELECT DISTINCT S.station_id, S.name, SA.sub_area_name FROM dev.Station AS S INNER JOIN dbo.SubArea AS SA ON S.sub_area_id = SA.sub_area_id INNER JOIN data.MonthlyNormalData as MND ON MND.station_id = S.station_id WHERE sub_area_name = '$regions[$slt_nomStations]' AND value IS NOT NULL ORDER BY S.name ASC");
    $stmt->execute();
    $IDs = array();
    $names = array();
    $stations = array();
    $lastStationName = "";
    while ($row = $stmt->fetch())
    {
        if ($lastStationName != $row['name'])
        {
            array_push($names, $row['name']);
            array_push($IDs, $row['station_id']);
            $lastStationName = $row['name'];
        }
    }
    $stations = array_fill_keys($IDs, $names);
    $newJSArray = json_encode($stations);
    echo json_encode($newJSArray);
}

不幸的是，这不起作用，因为getStationList()函数的输出现在是这样的:"{'"6047'":['"LA GRANDE RIVIERE A'"]}"。那么，我必须如何修改我的代码才能生成<select>节点，其子<option>节点的value属性设置为每个相应站点名称的ID ?