PHP出现操作文件没有权限怎么办？

#vi /etc/httpd/conf/httpd.conf

#
# If you wish httpd to run as a different user or group, you must run
# httpd as root initially and it will switch.
#
# User/Group: The name (or #number) of the user/group to run httpd as.
# It is usually good practice to create a dedicated user and group for
# running httpd, as with most system services.
#
User  apache
Group apache

#chown -R apache:apache your_folder
#chmod -R 755 your_folder

关闭SELINUX：

#vi /etc/selinux/config
#SELINUX=enforcing #注释掉
#SELINUXTYPE=targeted #注释掉
SELINUX=disabled #增加
:wq! #保存退出
#setenforce 0 #使配置立即生效