getimagesize錯誤

Question

我的上傳/裁剪功能幾乎是我想要的。除了我不得不刷新我的頁面顯示上傳的圖像..然後，當我刪除圖像使用刪除按鈕進一步下來我的代碼，我得到以下2個錯誤顯示在我的頭。除非我刷新頁面，否則上傳表單不會再顯示，那麼以下錯誤消失，直到我再次刪除上傳的圖像。

這是兩個錯誤，然後是帶有標記爲粗體的getimagesize函數的代碼。

Warning: getimagesize(imgs/pic7.jpg) [function.getimagesize]: failed to open stream: No such file or directory in ----- on line 48 

    Warning: getimagesize(imgs/pic7.jpg) [function.getimagesize]: failed to open stream: No such file or directory in ------ 42 

這是標記爲粗體兩個錯誤問題的區域 -

$id=$_SESSION['id']; 
$upload_dir = "imgs";    // The directory for the images to be saved in 
$upload_path = $upload_dir."/";    // The path to where the image will be saved 
$large_image_name = "pic".$id.".jpg";  // New name of the large image 
$thumb_image_name = "cropped".$id.".jpg"; 
$max_file = "1148576";      // Approx 1MB 
$max_width = "500";       // Max width allowed for the large image 
$thumb_width = "100";      // Width of thumbnail image 
$thumb_height = "100";      // Height of thumbnail image 

//Image functions 
//You do not need to alter these functions 
function resizeImage($image,$width,$height,$scale) { 
    $newImageWidth = ceil($width * $scale); 
    $newImageHeight = ceil($height * $scale); 
    $newImage = imagecreatetruecolor($newImageWidth,$newImageHeight); 
    $source = imagecreatefromjpeg($image); 
    imagecopyresampled($newImage,$source,0,0,0,0,$newImageWidth,$newImageHeight,$width,$height); 
    imagejpeg($newImage,$image,90); 
    chmod($image, 0777); 
    return $image; 
} 
//You do not need to alter these functions 
function resizeThumbnailImage($thumb_image_name, $image, $width, $height, $start_width, $start_height, $scale){ 
    $newImageWidth = ceil($width * $scale); 
    $newImageHeight = ceil($height * $scale); 
    $newImage = imagecreatetruecolor($newImageWidth,$newImageHeight); 
    $source = imagecreatefromjpeg($image); 
    imagecopyresampled($newImage,$source,0,0,$start_width,$start_height,$newImageWidth,$newImageHeight,$width,$height); 
    imagejpeg($newImage,$thumb_image_name,90); 
    chmod($thumb_image_name, 0777); 
    return $thumb_image_name; 
} 
//You do not need to alter these functions 
function getHeight($image) { 
    **$sizes = getimagesize($image);** 
    $height = $sizes[1]; 
    return $height; 
} 
//You do not need to alter these functions 
function getWidth($image) { 
    **$sizes = getimagesize($image);** 
    $width = $sizes[0]; 
    return $width; 
} 

Answer 1

調用，當然刪除圖像getimagesize($image)應該給你的錯誤。在調用getimagesize($image)和file_exists($file_path)函數之前檢查文件是否存在。