Popup on individual marker?

[tenznhok]

My GeoJSON is look like this:

var mycode = {
"type": "Feature",
"geometry": {
"type": "MultiPoint",
"coordinates": coord
},
"properties": {
"path_options": {"color": "red"},
"time": timeStamp,
"adv" : adv
}
where coord, timeStamp, adv are array of data

Each marker has different adv data. I am trying to put the adv data on each marker using:

marker: function(featureData) {
return{
getPopup: function(feature){
return feature.properties.adv
}
};
}

But I get value of adv array show on the popup instead of one marker show one adv data.

I am wondering how can I make each popup's marker show one data in the array, not the whole array data.