图片上传getimagesize（）警告 - 文件名不能为空

Question

我遇到了一个难题，想知道如果有人能够给我一个直接的答案。所以我使用PHP/MySQL构建了一个照片上传脚本。在脚本中，照片被重新调整大小，并在上传时给出临时名称。我用几张照片测试了它（文件大小为220 KB | 960 x 720），并且一切正常。然后我试图从我的数码相机（文件大小2.47 MB​​ | 3000×4000）上传多张图片，并突然我得到这个错误：

Warning: getimagesize() [function.getimagesize]: Filename cannot be empty in /php_parsers/photo_system.php on line 94 

Warning: Cannot modify header information - headers already sent by (output started at /php_parsers/photo_system.php:94) in /php_parsers/photo_system.php on line 96 

我检查计算器一个职位有类似的问题，来到但是它似乎并不适用于我正在经历的场景。

以下是适用于“photo_system.php”的代码。我已经评论了违规行94和96.任何帮助/想法，你可以给予不胜感激！

 <?php 
    if (isset($_FILES["photo"]["name"]) && isset($_POST["gallery"])){ 
     $sql = "SELECT COUNT(id) FROM photos WHERE user='$log_username'"; 
     $query = mysqli_query($db_conx, $sql); 
     $row = mysqli_fetch_row($query); 
     if($row[0] > 79){ 
      header("location: ../message.php?msg=The system allows only 80 pictures total"); 
      exit();  
    } 
    $gallery = preg_replace('#[^a-z 0-9,]#i', '', $_POST["gallery"]); 
    $fileName = $_FILES["photo"]["name"]; 
    $fileTmpLoc = $_FILES["photo"]["tmp_name"]; 
    $fileType = $_FILES["photo"]["type"]; 
    $fileSize = $_FILES["photo"]["size"]; 
    $fileErrorMsg = $_FILES["photo"]["error"]; 
    $kaboom = explode(".", $fileName); 
    $fileExt = end($kaboom); 
    $db_file_name = date("DMjGisY")."".rand(1000,9999).".".$fileExt; // WedFeb272120452013RAND.jpg 
    list($width, $height) = getimagesize($fileTmpLoc); //Offending Line 94 
    if($width < 10 || $height < 10){ 
     header("location: ../message.php?msg=ERROR: That image has no dimensions"); //Offending Line 96 
     exit(); 
    } 
    if($fileSize > 4194304) { 
     header("location: ../message.php?msg=ERROR: Your image file was larger than 4mb"); 
     exit(); 
    } else if (!preg_match("/\.(gif|jpg|png)$/i", $fileName)) { 
     header("location: ../message.php?msg=ERROR: Your image file was not jpg, gif or png type"); 
     exit(); 
    } else if ($fileErrorMsg == 1) { 
     header("location: ../message.php?msg=ERROR: An unknown error occurred"); 
     exit(); 
    } 
    $moveResult = move_uploaded_file($fileTmpLoc, "../user/$log_username/$db_file_name"); 
    if ($moveResult != true) { 
     header("location: ../message.php?msg=ERROR: File upload failed"); 
     exit(); 
    } 
    include_once("../php_includes/image_resize.php"); 
    $wmax = 800; 
    $hmax = 600; 
    if($width > $wmax || $height > $hmax){ 
     $target_file = "../user/$log_username/$db_file_name"; 
     $resized_file = "../user/$log_username/$db_file_name"; 
     img_resize($target_file, $resized_file, $wmax, $hmax, $fileExt); 
    } 
    $sql = "INSERT INTO photos(user, gallery, filename, uploaddate) VALUES ('$log_username','$gallery','$db_file_name',now())"; 
    $query = mysqli_query($db_conx, $sql); 
    mysqli_close($db_conx); 
    header("location: ../photos.php?u=$log_username"); 
    exit(); 
} 
?><?php 
if (isset($_POST["delete"]) && $_POST["id"] != ""){ 
    $id = preg_replace('#[^0-9]#', '', $_POST["id"]); 
    $query = mysqli_query($db_conx, "SELECT user, filename FROM photos WHERE id='$id' LIMIT 1"); 
    $row = mysqli_fetch_row($query); 
    $user = $row[0]; 
    $filename = $row[1]; 
    if($user == $log_username){ 
     $picurl = "../user/$log_username/$filename"; 
     if (file_exists($picurl)) { 
      unlink($picurl); 
      $sql = "DELETE FROM photos WHERE id='$id' LIMIT 1"; 
      $query = mysqli_query($db_conx, $sql); 
     } 
    } 
    mysqli_close($db_conx); 
    echo "deleted_ok"; 
    exit(); 
} 
?> 

Answer 1

好的。我找出了问题所在。希望这将有助于未来的人。所以我检查了我的phpinfo（），发现upload_max_filesize只设置为2M。我加了php.ini中有问题的文件的目录，其中包括：

upload_max_filesize = 250M 
post_max_size = 250M 
max_execution_time = 300 

date.timezone = "America/Los_Angeles" 

我不得不添加的date.timezone，因为我的系统不喜欢的事实，我没有它定义。无论如何，这已经解决了这个问题。