循环文件数组未上传所有文件

Question

我正在尝试根据用户上传的内容上传 1 - x 数量的文件。最近，我创建了一个 for 循环来遍历文件。我看到的只是第一个文件上传。

有人知道为什么只上传第一个文件吗？

class fileUpload
{

    public function __construct()
    {}
    public function upload() {

        $file_count = count($_FILES['uploadedFile']['name']);
        //$file_count = count($_FILES($file_post['name']));

        for ($i = 0; $i<$file_count; $i++) {
//          echo $file['uploadedFile']['name'][$index] . "\n";

            $target_dir = "uploads/";
            $target_file = $target_dir . basename($_FILES["uploadedFile"]["name"][$i]);
            $uploadOk = 1;
            $imageFileType = strtolower(pathinfo($target_file, PATHINFO_EXTENSION));        

            // Check if $uploadOk is set to 0 by an error
            if ($uploadOk == 0) {
                return 0;
    // if everything is ok, try to upload file
            } else {
                if (move_uploaded_file($_FILES["uploadedFile"]["tmp_name"][$i], $target_file)) {
                    return basename($_FILES["uploadedFile"]["name"][$i]);
                } else {
                    return 0;
                }
            }
        }

    }
}

表单输入：

<input type="file" name="uploadedFile[]" class="inputfile" id="uploadedFileTest" data-multiple-caption="{count} files selected" multiple>

Answer 1

那是因为你使用了return，return 会让你退出这个功能，你只会得到第一个上传的项目。

一个简单的解决方法是：

if (!move_uploaded_file($_FILES["uploadedFile"]["tmp_name"][$i], $target_file)) {
    return 0;
}

//更新2个解决方案建议

public function upload() {

        $file_count = count($_FILES['uploadedFile']['name']);
        //$file_count = count($_FILES($file_post['name']));
            // add a array to save the basename on each loop
            $results = [];
        for ($i = 0; $i<$file_count; $i++) {
//          echo $file['uploadedFile']['name'][$index] . "\n";

            $target_dir = "uploads/";
            $target_file = $target_dir . basename($_FILES["uploadedFile"]["name"][$i]);
            $uploadOk = 1;
            $imageFileType = strtolower(pathinfo($target_file, PATHINFO_EXTENSION));        

            // Check if $uploadOk is set to 0 by an error
            if ($uploadOk == 0) {
                return 0;
    // if everything is ok, try to upload file
            } else {
                if (move_uploaded_file($_FILES["uploadedFile"]["tmp_name"][$i], $target_file)) {
                    $results[] = basename($_FILES["uploadedFile"]["name"][$i]);
                } else {
                    return 0;
                }
            }
        }
        //return all basename in one shot
        return $results;

    }