評論系統上的JSON解析錯誤

Question

我目前正在評論系統上工作，昨天一切正常，今天我開始犯錯。我正在使用json直接發佈評論，而無需重新加載頁面。我收到的錯誤是「SyntaxError：JSON.parse：unexpected character」。我必須重新加載頁面才能顯示評論。

另外，當我有它的工作，我無法弄清楚如何插入日期，它適用於從數據庫中的頁面重新加載。它在頁面重新加載之前顯示爲0。

下面是代碼：

$(document).ready(function(){ 


//this will fire once the page has been fully loaded 
$('#comment-post-btn').click(function(){ 
comment_post_btn_click(); 
}); 
}); 

function comment_post_btn_click() 
{ 

//text within textarea which the person has entered 
var _comment = $('#comment-post-text').val(); 
var _userId = $('#userId').val(); 
var _userName = $('#userName').val(); 
var _PlaceId = $('#PlaceId').val(); 
var _date = $('.date').val(); 


if(_comment.length > 0 && _userId != null) 
{ 
    //proceed with our ajax callback 
    $('.comment-insert-container').css('border' , '1px solid #e1e1e1'); 

    $.post("ajax/comment_insert.php" , 
     { 
      task : "comment_insert", 
      userId : _userId, 
      comment : _comment, 
      PlaceId : _PlaceId, 
      date : _date 
     } 
    ) 
    .error(

     function() 
     { 
      console.log("Error: "); 
     }) 
    .success(

     function(data) 
     { 
      //success 
      //task: insert html into the ul/li 
      comment_insert(jQuery.parseJSON(data)); 
      console.log("responseText: " +data); 
     } 

    ); 


    console.log(_comment + " UserName: " + _userName + " User Id: " + _userId + " PlaceId: " + _PlaceId + " date: " + _date); 
} 
else 
{ 
    $('.comment-insert-container').css('border' , '1px solid #ff0000'); 
    console.log("the text area was empty"); 

} 


//removes text from text area 
$('#comment-post-text').val(""); 
} 

function comment_insert(data) 
{ 
var t = ''; 
t += '<li class="comment-holder" id="_'+data.comment.comment_id+'">'; 
t += '<div class="user-img">'; 
    t += '<img src="'+data.user.profile_img+'" class="user-img-pic" />'; 
t += '</div>'; 
    t += '<div class="comment-body">'; 
     t += '<h3 class="username-field">'+data.user.userName+'</h3>'; 
     t += '<p class="date">'+data.comment.date+'</p>'; 
    t += '</div>'; 
     t += '<div class="comment-text">'+data.comment.comment+'</div>'; 
      t += '<div class="comment-buttons-holder">'; 
       t += '<ul>'; 
        t += '<li id="'+data.comment.comment_id+'" class="delete-btn">x</li>'; 
       t += '</ul>'; 
      t += '</div>'; 
t += '</li>'; 

$('.comments-holder-ul').prepend(t); 
add_delete_handlers(); 

} 

Answer 1

無論ajax/comment_insert.php的回報是不是有效的JSON。使用JSLint檢查語法。