javascript - Ajax response undefined or strange -

i'm trying send array js, can't have answer want.

this php code:

$output = array('total'=>(float)$bhoras[1]'gastas'=>(float)$bhoras[2]);  echo json_encode($output); 

and js code:

function projectselect() {     var proj = document.getelementbyid('projetosselect').value;     $.ajax({         url: 'crm files/tsread.php',         type: "post",         data: ({projetosselect: proj}),         complete:function(data)          {             var horas = data.responsetext;             alert(horas); // response -> {"total":146,"gastas":84.5}             alert(horas[3]); // response -> o         }      }); } 

i want "146" , "84.5".

i tried do, alert(horas['total']), alert(horas.total), give me undefined

just specify datatype: "json" , jquery parse response you:

function projectselect() {     var proj = $('#projetosselect').val();     $.ajax({         url: 'crm files/tsread.php',         type: "post",         data: ({projetosselect: proj}),         datatype: "json",         success: function(horas)          {             alert(horas.total);         }      }); }