多个文件上传导致 foreach() 错误

Question

实际上是尝试通过某种重命名方式一次上传一个文件夹中的多张图片。上传进入 foreach 循环。但是，它确实在此时停止：

foreach ($_FILES['pictures']['name'] as $f => $name) {
        if ($_FILES['pictures']['error'][$f] == 0) {
            $name = $date;
            $name .= "-";
            $name .= $i;
            $name .= ".";
            $extsearch = $_FILES['pictures']['name'][$f];
            $ext = pathinfo($extsearch, PATHINFO_EXTENSION);
            $name .= $ext;
            if(move_uploaded_file($_FILES["pictures"]["tmp_name"][$f], $path.$name)) {
                if ($i == 1) {
                    create_image_thumb($albumFolder, $name);
                }
                $i++;
                resize_image($albumFolder, $name);
            }
        }
    }

但是，我在 error_log 中收到此错误并且文件未移动：

PHP Warning:  Invalid argument supplied for foreach() in /home/clublabo/public_html/management/create_album_action.php on line 43

更新：这是 HTML 代码：

<form class="form form-horizontal" action="create_album_action.php" method="post" enctype="multipart/form-data">
              <div class="form-group">
                <label for="email-2" class="col-sm-3 col-md-4 control-label">Date</label>
                <div class="col-sm-6 col-md-4">
                  <div class="input-with-icon">
                  <input name="dateAlbum" class="form-control" type="text" value="<?php echo date('Y-m-d'); ?>" data-provide="datepicker" data-date-autoclose="true" data-date-format="yyyy-mm-dd"><span class="icon icon-calendar input-icon"></span></div>
                </div>
              </div>
              <div class="form-group">
                <label for="password-2" class="col-sm-3 col-md-4 control-label">Pictures</label>
                <div class="col-sm-6 col-md-4">
                  <input name="pictures" id="password-2" class="form-control" type="file" multiple>
                </div>
              </div>
              <div class="form-group">
                <div class="col-sm-offset-3 col-sm-6 col-md-offset-4 col-md-4">
                  <button class="btn btn-primary pull-right" type="submit">Create Album</button>
                </div>
              </div>
            </form>

也许你们知道如何解决这个问题？

谢谢:)

Answer 1

只需在表单输入末尾添加[]即可"name"。

Answer 2

替换：

<input name="pictures" id="password-2" class="form-control" type="file" multiple>

与：

<input name="pictures[]" id="password-2" class="form-control" type="file" multiple>

多个文件上传导致 foreach() 错误

Multiple File Upload results in foreach() error

php

foreach

image-uploading