linux环境下php网站报错could not be opened: failed to open stream: Permission denied

问题概述：

在linux环境下搭建php网站，访问页面时报错 could not be opened: failed to open stream: Permission denied

问题剖析：

看英文一看就是文件权限的问题，所以正常的做法都是加上777权限，但是还是一直报错

问题解决：

1，给当前文件夹赋予最高权限 chmod -R 777 app

2，修改selinux权限设定

vi /etc/selinux/config

# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
#     enforcing - SELinux security policy is enforced.
#     permissive - SELinux prints warnings instead of enforcing.
#     disabled - No SELinux policy is loaded.
SELINUX=disabled  // 改此处，别改错了
# SELINUXTYPE= can take one of three values:
#     targeted - Targeted processes are protected,
#     minimum - Modification of targeted policy. Only selected processes are protected.
#     mls - Multi Level Security protection.
SELINUXTYPE=targeted

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