Warning: POST Content-Length of 9443117 bytes exceeds the limit of 8388608 bytes in Unknown on line 0
致命错误: Call to a member function validate() on null的问题
主要是因为PHP配置文件限制了文件上传的大小
TP上传的时候$file是空所以就会报这些错误
解决办法
找到PHP配置文件
upload_max_filesize = 1000M; post_max_size = 1000M;