PHP: fopen() 权限被拒绝

Question

我对这段代码感到困惑:

test.php:

fopen('test.txt','a+');

当我执行它时，我得到一个错误:

Warning: fopen(test.txt): failed to open stream:
     Permission denied in /var/www/html/yuelu3/mobile/text.php on line 2

test.txt:

-rwxrwxrwx. 1 jt jt     87 10月  7 20:58 test.txt

问题出在哪里？

非常感谢!我找到了问题，我用FC13，因为SELinux的保护，一些 Action 被拒绝了。所以，我只需要摆脱保护。

Answer 1

此问题也可能是启用 SELinux 的结果。这可以使用以下方法解决:

chown -R apache:apache /var/www/html/directory_to_write
chcon -R -t httpd_sys_content_t /var/www/html/directory_to_write
chcon -R -t httpd_sys_rw_content_t /var/www/html/directory_to_write

编辑:

您可以在 https://web.archive.org/web/20150927091100/https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Managing_Confined_Services/sect-Managing_Confined_Services-The_Apache_HTTP_Server-Types.html 找到旧的解释或 https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/managing_confined_services/sect-managing_confined_services-the_apache_http_server-types

但是，如果您使用的是 Redhat 8 或更新版本，您可能需要关注 https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/using_selinux/configuring-selinux-for-applications-and-services-with-non-standard-configurations_using-selinux#customizing-the-selinux-policy-for-the-apache-http-server-in-a-non-standard-configuration_configuring-selinux-for-applications-and-services-with-non-standard-configurations