$(".select2-ajax").select2({
ajax: {
url: "ajax.call.php",
type:'POST',
dataType: 'json',
data: function (params) {
  return {
    nom: params.term, // search chars
    page: params.page,
  };
},
processResults: function (data, page) {
console.log(data.data);
if(typeof(data.data)=='undefined' || !data.data || data.data.length <= 0)
  var res = [];
else
{
  var res = [];
  for (var i = data.data.length - 1; i >= 0; i--)
  {
    res.push({"text":data.data[i]["nom"]+' '+data.data[i]["prenom"],"id":data.data[i]["id_salarie"]});
  };
}
return { results: res};
},
cache: true
 },
formatNoMatches: function( term ) {
return "<li class='select2-no-results'>' "+term+" ': Aucun  résultat</li>";
},

allowClear: true,
language: 'fr',
multiple: false,

selectOnBlur:false,
createSearchChoice: false,



escapeMarkup: function (markup) { return markup; },
minimumInputLength: 1,
});

$('select').select2({
  createTag: function () {
    // Disable tagging
    return null;
  }
});