专做电器的网站/技术短期培训班
最近想在局域网中用PHP共享管理文件，考虑到可能会上传超大文件我把php.ini配置中post_max_size设为4096M，结果上传文件没有问题，普通的表单提交后出现如下的问题：
Warning: Unknown: POST Content-Length of 53 bytes exceeds the limit of 0 bytes in Unknown on line 0 Warning: Cannot modify header information - headers already sent in Unknown on line 0
折腾了很久，后来不断的更改post_max_size的值。
php.ini配置
post_max_size = 2048M
Warning: Unknown: POST Content-Length of 53 bytes exceeds the limit of -2147483648 bytes in Unknown on line 0 Warning: Cannot modify header information - headers already sent in Unknown on line 0
php.ini配置
post_max_size = 4096M
Warning: Unknown: POST Content-Length of 53 bytes exceeds the limit of 0 bytes in Unknown on line 0 Warning: Cannot modify header information - headers already sent in Unknown on line 0
最后发现发现post_max_size最大可以是2047M，普通表单提交没有问题。