PHP 警告：未知：无法打开流
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PHP Warning: Unknown: failed to open stream
提问by Bibhas Debnath
I edited the apache httpd.conf file recently for the mod_rewrite to work. I don't know if this problem originated from that or not, but i'm getting this problem from that day.
This is what I see on the frontend when I run the software -
我最近编辑了 apache httpd.conf 文件，以便 mod_rewrite 工作。我不知道这个问题是否源于那个，但我从那天开始遇到这个问题。
这是我运行软件时在前端看到的 -
Server error The website encountered an error while retrieving http://localhost/prestashop/. It may be down for maintenance or configured incorrectly.
服务器错误 网站在检索http://localhost/prestashop/ 时遇到错误 。它可能因维护而停机或配置不正确。
There is no specific file that triggers this. But I saw that usually small programs that consists of 4-5 php files, runs fine, but softwares with a lot of files(like PrestaShop) don't.
I checked the logs and this is what I found.
没有触发此操作的特定文件。但我看到通常由 4-5 个 php 文件组成的小程序运行良好，但包含大量文件的软件（如 PrestaShop）则不然。
我检查了日志，这就是我发现的。
[Wed Mar 16 19:33:39 2011] [error] [client ::1] PHP Warning: Unknown: failed to open stream: Permission denied in Unknown on line 0
[Wed Mar 16 19:33:39 2011] [error] [client ::1] PHP Fatal error: Unknown: Failed opening required '/var/www/html/yomig/index.php' (include_path='.:/usr/share/pear:/usr/share/php') in Unknown on line 0
[Wed Mar 16 19:33:39 2011] [error] [client ::1] File does not exist: /var/www/html/favicon.ico
[Wed Mar 16 19:33:41 2011] [error] [client ::1] PHP Warning: Unknown: failed to open stream: Permission denied in Unknown on line 0
[Wed Mar 16 19:33:41 2011] [error] [client ::1] PHP Fatal error: Unknown: Failed opening required '/var/www/html/yomig/index.php' (include_path='.:/usr/share/pear:/usr/share/php') in Unknown on line 0
回答by John Magnolia
Experienced the same error, for me it was caused because on my Mac I have changed the DocumentRoot to my users Sites directory.
遇到了同样的错误，对我来说这是因为在我的 Mac 上我已将 DocumentRoot 更改为我的用户站点目录。
To fix it, I ran the recursive command to ensure that the Apache service has read permissions.
为了修复它，我运行了递归命令以确保 Apache 服务具有读取权限。
sudo chmod -R 755 ~/Sites
回答by jamie
If you are running Fedora, make sure SELinux is not interfering.You fix this with this command:
如果您正在运行 Fedora，请确保 SELinux 没有干扰。您可以使用以下命令修复此问题：
sudo /sbin/restorecon -R /var/www/.
More info here: linuxquestions.org/questions/linux-server-73/
回答by Mullins
I had the same error and my problem was the file permissions were incorrect.
我有同样的错误，我的问题是文件权限不正确。
chmod 755 index.php
worked for me.
为我工作。
回答by Narek
I got this problem when insert wrong file address into .htaccess
我在插入错误的文件地址时遇到了这个问题 .htaccess
php_value auto_prepend_file "/home/user/wrong/address/config.php"
So if you use auto_prepend_filecheck your file path. It called from .htaccessso PHP can't determine error file and line.
因此，如果您使用auto_prepend_file检查您的文件路径。它调用 from.htaccess所以 PHP 无法确定错误文件和行。
回答by Narek
Here some guide how to fix it. Go to :
这里有一些指导如何修复它。去 ：
cd /var/www
sudo chown www-data:www-data * -R
sudo usermod -a -G www-data username
Change userneme with your username. I hope it help.
使用您的用户名更改用户名。我希望它有所帮助。
回答by Dexter
In my mind true way is:
在我看来，真正的方法是：
# add READ permission to all directories and files under your DocumentRoot
sudo chmod +r /path/to/DocumentRoot/ -R
# add EXECUTE permission to all DIRECTORIES under your DocumentRoot
find /path/to/DocumentRoot/ -type d -exec chmod +x {} \;
回答by carlwang
It is a SELinux blocking issue, Linux prevented httpd access. Here is the solution：
这是一个 SELinux 阻塞问题，Linux 阻止了 httpd 访问。解决办法如下：
# restorecon '/var/www/html/wiki/index.php'
# restorecon -R '/var/www/html/wiki/index.php'
# /sbin/restorecon '/var/www/html/wiki/index.php'
回答by Adrian Gunawan
I just came across of this same problem and in my case it was caused by selinux. Disabling it solved the issue. And no, I don't need selinux on my workstation, thank you.
我刚刚遇到了同样的问题，就我而言，它是由 selinux 引起的。禁用它解决了这个问题。不，我的工作站上不需要 selinux，谢谢。
回答by petka
It happened to me today with /home/user/public_html/index.phpand the solution was to do chmod o+x /home/useras this directory has to have the X as otherwise the apache server can't list files (i.e. do ls)
今天发生在我身上/home/user/public_html/index.php解决方案是这样做，chmod o+x /home/user因为这个目录必须有 X 否则 apache 服务器无法列出文件（即做ls）
回答by SimplGy
This also happens (and is particularly confounding) if you forgot that you created a Windows symlink to a different directory, and that other directory doesn't have appropriate permissions.
如果您忘记创建了指向不同目录的 Windows 符号链接，并且该其他目录没有适当的权限，也会发生这种情况（并且特别令人困惑）。
