Question

我正在制作一个上传脚本，将多张照片上传到一个文件夹，同时上传到另一个文件夹。

我的问题是，当我上传超过2.5mb的文件时，我收到错误：mkdir(): File exists ...我想。我的phpinfo();表示我的post_max_size为8M而upload_max_filesize为40M。所以我不确定为什么它只在大文件或多文件上执行此操作。如果我上传较小的图像（~1mb），那么一切正常。但是当我上传大文件时，我得到了这个错误。

警告：剧本之墙......

以下是功能：

<?PHP
    function makeFile($gallery_title, $gallery_date, $target_dir){
        $new_file = fopen($target_dir . "info.php", "w") or die("Unable to open file!");
        $txt = '<div class="info"><div class="title">'.$gallery_title.'</div><div class="date">'.$gallery_title.'</div><div class="enter">Enter</div></div>';
        fwrite($new_file, $txt);
        fclose($new_file);  
    }
    function resize($file, $width, $height, $target_dir, $new_name, $image_type){
        /* Get original image x y*/
        list($w, $h) = getimagesize($file);
        /* calculate new image size with ratio */
        $ratio = max($width/$w, $height/$h);
        $h = ceil($height / $ratio);
        $x = ($w - $width / $ratio) / 2;
        $w = ceil($width / $ratio);
        /* new file name */
        $path = $target_dir.$new_name;
        /* read binary data from image file */
        $imgString = file_get_contents($file);
        /* create image from string */
        $image = imagecreatefromstring($imgString);
        $tmp = imagecreatetruecolor($width, $height);
        imagecopyresampled($tmp, $image,
            0, 0,
            $x, 0,
            $width, $height,
            $w, $h);
        /* Save image */
        switch ($image_type) {
            case 'image/jpeg':
                imagejpeg($tmp, $path, 100);
                break;
            case 'image/png':
                imagepng($tmp, $path, 0);
                break;
            case 'image/gif':
                imagegif($tmp, $path);
                break;
            default:
                exit;
                break;
        }
        return $path;
        /* cleanup memory */
        imagedestroy($image);
        imagedestroy($tmp);
    }
?>

这是剧本：

<?PHP
    error_reporting(E_ALL);
    $gallery_name = $_POST['galleryName'];
    $gallery_title = $_POST['galleryTitle'];
    $gallery_date = $_POST['galleryDate'];
    $target_dir = "../galleries/".$gallery_name."/";
    $target_dir_high = $target_dir."high/";
    $target_dir_low = $target_dir."low/";
    $valid_formats = array("jpg", "png", "gif", "zip", "bmp");
    $max_file_size = 1024000000; //1mb
    $count = 0;

    if(isset($_POST) and $_SERVER['REQUEST_METHOD'] == "POST"){
        if (mkdir($target_dir, 0777, true) && mkdir($target_dir_high, 0777, true) && mkdir($target_dir_low, 0777, true)) {
            makeFile($gallery_title, $gallery_date, $target_dir); //Makes the info file
            // Loop $_FILES to execute all files
            foreach ($_FILES['files']['name'] as $f => $name) {     
                if ($_FILES['files']['error'][$f] == 4) {
                    $message[] = "$name has an error";
                    continue; // Skip file if any error found
                }          
                if ($_FILES['files']['error'][$f] == 0) {              
                    if( ! in_array(pathinfo($name, PATHINFO_EXTENSION), $valid_formats) ){
                        $message[] = "$name is not a valid format";
                        continue; // Skip invalid file formats
                    } else { // No error found! Move uploaded files 
                        $old_name = $_FILES['files']['name'][$f];
                        $ext = end((explode(".", $old_name)));
                        $count_padded = sprintf("%02d", $count);
                        $new_name = $gallery_name."-".$count_padded.".".$ext;
                        $image_type = $_FILES['files']['type'][$f];

                        if(move_uploaded_file($_FILES['files']['tmp_name'][$f], resize($_FILES['files']['tmp_name'][$f], 1920, 1080, $target_dir_high, $new_name, $image_type))){
                            list($w, $h) = getimagesize($target_dir_high.$new_name);
                            $max_size = 500;
                            $long_side = max($w, $h);
                            $ratio = ($max_size/$long_side); //This is a percentage
                            $new_width = floor($w*$ratio);
                            $new_height = floor($h*$ratio);
                            $destImage = imagecreatetruecolor($new_width, $new_height);
                            $sourceImage = imagecreatefromjpeg($target_dir_high.$new_name);
                            imagecopyresampled($destImage, $sourceImage, 0, 0, 0, 0, $new_width, $new_height, $w, $h);
                            imagejpeg($destImage, $target_dir_low.$new_name, 100);
                            imagedestroy($destImage);
                            imagedestroy($sourceImage);
                            if($count == 0){
                                copy($target_dir_low.$new_name, $target_dir.$new_name);
                            }
                            $count++;
                            echo $message = 'Congratulations!  The file '.$target_dir.$new_name.' was accepted.<br />';
                        }
                    }
                }
            }
        } else {
            die('This gallery exists.  Go back and rename.');
        }
    }
?>

Answer 1

首先，您需要检查目录是否已存在，然后使用is_dir()。即：

$dir = "/home/path/dir";
if(is_dir($dir))
  {
  echo ("dir $dir already exists");
  }
else
  {
  echo ("dir $dir doesn't exist");
  }

is_dir

（PHP 4，PHP 5）

is_dir - 判断文件名是否是目录
  如果文件名存在且是目录TRUE，则返回FALSE   否则。

PHP'mkdir（）：当文件太大时文件存在？

1 个答案: