php - 警告 : mkdir(): File exists

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传输到我的上传文件夹的文件工作正常，但我在 mkdir 中收到警告。它说文件存在但图片和文件夹生成自己的名称。我不知道什么警告正在确定。

include 'connect.php';

$dir = substr(uniqid(), -7); // Uniqid for subdirectory

$path = "uploads/$dir/"; // uploads/subdirectory/  // Make directory

$valid_formats = array("jpg", "png", "jpeg", "kml");

$max_file_size = 2097152;

$count = 0;

// Loop $_FILES to execute all files

if (!empty($_FILES)) {
    foreach ($_FILES['files']['name'] as $f => $name) {
        if ($_FILES['files']['error'][$f] == 4) {
            continue; // Skip file if any error found
        }

        if ($_FILES['files']['error'][$f] == 0) {
            if ($_FILES['files']['size'][$f] > $max_file_size) {
                $message[] = "$name is too large!.";
                continue; // Skip large files
            } elseif (!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
                mkdir($path, 0700);
                $ext = pathinfo($_FILES['files']['name'][$f], PATHINFO_EXTENSION);
                $uniq_name = substr(uniqid(), -5) . '.' . $ext;
                $dest = $path . $uniq_name;

                if (move_uploaded_file($_FILES["files"]["tmp_name"][$f], $dest)) {
                    // more logic
                }
            }
        }
    }
}

Answer 1

警告非常明确，您正在创建已经存在的目录。所以，只需将其更改为

if (!file_exists($path)) {
    mkdir($path, 0700);
}