如何打印出 $_FILE
即然它是超全局数组，按说应该随便在一个php页中就能打印出来啊，但是我打印出来的确是Array();不知为啥,
那么问题来了，$_FILE还必须要有什么条件才能打印出来吗
比如我在下图里的环境打印的
回复讨论(解决方案)
把表单贴出来
我用print_r和var_dump都打印不出数组结构来
print_r($_FILES);不能用echo输出
你提交到哪个页面了发你的和form表单
你提交到哪个页面了发你的和form表单
其实我的目的就是想打印出$_FILE这个数组的结构来，
没有数据提交过去是打印不出来的就是空数组array
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