爲什麼我receving一個未定義的索引錯誤此$ _SESSION變量

我不知道爲什麼我receving這個錯誤，但它一直聲稱我有一個未定義的指數：上的AudioFile線35以下代碼：

<?php 

ini_set('display_errors',1); 


session_start(); 

?> 

<body> 

<?php 

// connect to the database 
include('connect.php'); 

    /* check connection */ 
    if (mysqli_connect_errno()) { 
    printf("Connect failed: %s\n", mysqli_connect_error()); 
    die(); 
    } 

    unlink("AudioFiles/" . $_SESSION['AudioFile']); 

$delete = $mysqli->prepare('DELETE FROM Audio WHERE AudioId = ?'); 
$delete->bind_param("i",$_SESSION['lastAudioID']); 
$delete->execute(); 

$deleteaud = $mysqli->prepare('DELETE FROM Audio_Question WHERE AudioId = ?'); 
$deleteaud->bind_param("i",$_SESSION['lastAudioID']); 
$deleteaud->execute(); 


?> 


</body> 
</html>

我不太理解爲什麼我收到這個索引錯誤。有誰知道我爲什麼接受這個錯誤？

我在audioupload.php頁面其低於

 <?php 

ini_set('session.gc_maxlifetime',12*60*60); 
ini_set('session.gc_divisor', '1'); 
ini_set('session.gc_probability', '1'); 
ini_set('session.cookie_lifetime', '0'); 
require_once 'init.php'; 


session_start(); 

?> 

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"> 
<head> 
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 
</head> 

<body> 
<?php 
ini_set('display_errors',1); 
error_reporting(E_ALL); 

// connect to the database 
include('connect.php'); 

    /* check connection */ 
    if (mysqli_connect_errno()) { 
    printf("Connect failed: %s\n", mysqli_connect_error()); 
    die(); 
    } 

$result = 0; 

    if ((($_FILES["fileAudio"]["type"] == "audio/wav") 
|| ($_FILES["fileAudio"]["type"] == "audio/wma") 
|| ($_FILES["fileAudio"]["type"] == "audio/mp3") 
|| ($_FILES["fileAudio"]["type"] == "audio/m3u") 
|| ($_FILES["fileAudio"]["type"] == "audio/iff") 
|| ($_FILES["fileAudio"]["type"] == "audio/mid") 
|| ($_FILES["fileAudio"]["type"] == "audio/m4a") 
|| ($_FILES["fileAudio"]["type"] == "audio/mpa") 
|| ($_FILES["fileAudio"]["type"] == "audio/aif") 
|| ($_FILES["fileAudio"]["type"] == "audio/wa")) 
&& ($_FILES['fileAudio']['size'] > 0)) 
    { 

if(file_exists("AudioFiles/".$_FILES['fileAudio']['name'])) { 
    $parts = explode(".",$_FILES['fileAudio']['name']); 
    $ext = array_pop($parts); 
    $base = implode(".",$parts); 
    $n = 2; 

    while(file_exists("AudioFiles/".$base."_".$n.".".$ext)) $n++; 
    $_FILES['fileAudio']['name'] = $base."_".$n.".".$ext; 

    move_uploaded_file($_FILES["fileAudio"]["tmp_name"], 
    "AudioFiles/" . $_FILES["fileAudio"]["name"]); 
    $result = 1; 

} 
    else 
     { 
     move_uploaded_file($_FILES["fileAudio"]["tmp_name"], 
     "AudioFiles/" . $_FILES["fileAudio"]["name"]); 
     $result = 1; 

    } 

    $audiosql = "INSERT INTO Audio (AudioFile) 
    VALUES (?)"; 

     if (!$insert = $mysqli->prepare($audiosql)) { 
     // Handle errors with prepare operation here 
    } 

     //Dont pass data directly to bind_param store it in a variable 
$insert->bind_param("s",$aud); 

//Assign the variable 
$aud = 'AudioFiles/'.$_FILES['fileAudio']['name']; 

$insert->execute(); 

     if ($insert->errno) { 
      // Handle query error here 
     } 

     $insert->close(); 

$lastAudioID = $mysqli->insert_id; 

$_SESSION['lastAudioID'] = $lastAudioID; 
$_SESSION['AudioFile'] = $_FILES["fileAudio"]["name"]; 

$sessid = $_SESSION['id'] . ($_SESSION['initial_count'] > 1 ? $_SESSION['sessionCount'] : '');   

$sessionquery = "SELECT SessionId FROM Session WHERE (SessionName = ?)"; 

    if (!$sessionstmt = $mysqli->prepare($sessionquery)) { 
    // Handle errors with prepare operation here 
    echo __LINE__.': '.$mysqli->error; 
} 

// Bind parameter for statement 
$sessionstmt->bind_param("s", $sessid); 

// Execute the statement 
$sessionstmt->execute(); 

      if ($sessionstmt->errno) 
      { 
       // Handle query error here 
       echo __LINE__.': '.$sessionstmt->error; 
       break 1; 
      } 

// This is what matters. With MySQLi you have to bind result fields to 
// variables before calling fetch() 
$sessionstmt->bind_result($sessionid); 

// This populates $optionid 
$sessionstmt->fetch(); 

    $sessionstmt->close();  

$audioquestionsql = "INSERT INTO Audio_Question (AudioId, SessionId, QuestionId) 
    VALUES (?, ?, ?)"; 

    if (!$insertaudioquestion = $mysqli->prepare($audioquestionsql)) { 
     // Handle errors with prepare operation here 
     echo "Prepare statement err audioquestion"; 
    } 

$qnum = (int)$_POST['numaudio']; 

$insertaudioquestion->bind_param("iii",$lastAudioID, $sessionid, $qnum); 

    $insertaudioquestion->execute(); 

       if ($insertaudioquestion->errno) { 
      // Handle query error here 
     } 

     $insertaudioquestion->close(); 

     } 

?> 

    <script language="javascript" type="text/javascript">window.top.stopAudioUpload(<?php echo $result; ?>, '<?php echo $_FILES['fileAudio']['name'] ?>');</script> 

</body> 
</html>

來源

2012-10-23 user1763986

'$ _SESSION ['AudioFile']'在任何地方定義？ – andrewsi

這意味着session變量不包含索引'AudioFile'。你在哪裏設置'AudioFile'（'$ _SESSION ['AudioFile'] = ...;''）的會話變量？ – n00dle

我已經在另一個頁面中定義了會話變量，我已經包含代碼或在上面更新的問題 – user1763986

未定義指數表示「lastAudioID」在$ _SESSION不存在鍵定義的$ _SESSION變量。你可以檢查這個：

if(array_key_exists('lastAudioID', $_SESSION)) { 
    // Key exists 
}

似乎你沒有在你的代碼中設置密鑰（或不正確）。

編輯：這可能是因爲你輸出已經有東西后包括你的文件。嘗試在輸出任何內容之前包含該文件。我很確定這是它。

來源

2012-10-23 16:24:05 tobspr

我已經在另一個頁面中定義了會話變量，我已經包含代碼或者在 – user1763986

以上的更新問題中，所以嘗試var_dump（ $ _SESSION）看看它會得到保存。 – tobspr

好吧，這很奇怪，但在谷歌瀏覽器中保存它，所以我沒有得到索引錯誤，但在Firefox，Safari瀏覽器和歌劇。它不保存它，因此未定義的索引通知 – user1763986

爲什麼我receving一個未定義的索引錯誤此$ _SESSION變量

回答

相關問題