将PHP变量传递给dropzone.js

<form action="upload.php" class="dropzone">
  <input type="hidden" name="var1" value="<?php echo $phpVariable; ?>">
</form>

<script src="path/to/dropzone.js"></script>

Dropzone.options.myDropzone = {
  url: "upload.php", // 上传文件处理的PHP文件
  paramName: "file", // 上传的文件参数名
  maxFilesize: 5, // 文件大小限制，单位为MB
  addRemoveLinks: true, // 显示移除上传文件的链接
  init: function() {
    this.on("sending", function(file, xhr, formData) {
      formData.append("var1", $("input[name='var1']").val()); // 将PHP变量添加到FormData对象中
    });
  }
};

<div id="myDropzone" class="dropzone"></div>