PHP上传文件时文件过大$_FILES为空的解决方法_php技巧
在做图片上传的时候突然发现一张gif图片上传失败 size为0，实际大小为4.66M。上传小文件时可以，传大文件就不行，看了下PHP.INI里面upload_max_filesize = 2M, 问题就出在这了，修改其值
; Maximum allowed size for uploaded files.
upload_max_filesize = 20M
重启了下nginx问题解决。
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