$.ajax({
        type: 'GET',
        url: 'hobby_search.php',
        data: { term: txt },
        dataType: 'json', // Choosing a JSON datatype
         success: function(data) {
                var JSONArray = $.parseJSON( data );
                console.log(JSONArray);
            },
        error: function() {alert("Error. Try later.");}
    });