PHP 5.4 setcookie headers already sent by setcookie 問題

woff

今天在測試PHP時
源碼

1. <?php
   
2. $RPage = $_GET['RPage'];
   
3. $RID = $_COOKIE["RID"];
   
4. if (!isset($_COOKIE['RID'])){
   
5.                 setcookie('RID',addslashes($_GET['RID']),time()+2*60*60);
   
6. }
   
7.         
   
8. $Click_ID = $_COOKIE['Click_ID'];
   
9.         if (!isset($_COOKIE['Click_ID'])){
   
10.                 setcookie('Click_ID',addslashes($_GET['Click_ID']),time()+2*60*60);
    
11. }
    
12. $RPath = $_SERVER['HTTP_HOST']."/".$RPage;
    
13. 
    
14. if($RPage)
    
15.   header("Location: ".$RPath);
    
16. else
    
17.   header("Location: ".$_SERVER['HTTP_HOST']);
    
18. 
    
19. ?>

複製代碼

結果輸出

1. cannot modify header information - headers already sent by setcookie

複製代碼

可是這頁面根本沒輸出阿
怎麼會這樣

請教古歌大神

I also encountered this exact problem and finally found a solution. You have to save the file without the utf-8 BOM signature since that includes a character at the top of the document.

In adobe dreamviewer I just had to uncheck the "Include Unicode Signature (BOM)" when saving the file and my problem was solved.

您必須保存沒有utf-8 BOM簽名的文件，因為在文檔頂部包含一個字符。

在Adobe DreamWaver中，在保存文件時取消選中“包括Unicode簽名（BOM）”，問題就解決了。
https://stackoverflow.com/questi ... eaders-already-sent