我正在尝试使用pear的邮件类，但是我的脚本没有权限访问我安装的主文件夹中的Mail.php，并且我已经在它需要访问的文件上正确执行了chown命令，这里是我的php脚本是什么样的：
<?php
require_once "/home/ec2-user/pear/share/pear/Mail.php";
if (isset($_GET['trade']))
{
我得到的错误是：
Warning: require_once(/home/ec2-user/pear/share/pear/Mail.php): failed to open stream: Permission denied in /var/www/html/newslookup/email.php on line 5
Fatal error: require_once(): Failed opening required '/home/ec2-user/pear/share/pear/Mail.php' (include_path='.:/usr/share/pear:/usr/share/php') in /var/www/html/newslookup/email.php on line 5
这是为了表明我安装了梨，并且我已正确执行了chown命令：
[ec2-user@ip-172-31-90-218 ~]$ pwd
/home/ec2-user
[ec2-user@ip-172-31-90-218 ~]$ sudo chown -R ec2-user:apache pear // here
[ec2-user@ip-172-31-90-218 ~]$ ls -alrt
total 32
-rw-r--r-- 1 ec2-user ec2-user 231 Jul 27 2018 .bashrc
-rw-r--r-- 1 ec2-user ec2-user 193 Jul 27 2018 .bash_profile
-rw-r--r-- 1 ec2-user ec2-user 18 Jul 27 2018 .bash_logout
drwxr-xr-x 3 root root 22 Jan 29 02:19 ..
-rw------- 1 ec2-user ec2-user 2067 Feb 17 22:24 .viminfo
drwxrwxr-x 3 ec2-user ec2-user 19 Mar 25 20:44 .local
drwxrwxr-x 3 ec2-user ec2-user 22 Mar 25 20:44 .config
drwxrwxr-x 3 ec2-user ec2-user 22 Mar 25 20:44 .cache
drwx------ 2 ec2-user ec2-user 80 Mar 25 21:49 .ssh
-rw------- 1 ec2-user ec2-user 9997 Apr 11 18:50 .bash_history
-rw-rw-r-- 1 ec2-user ec2-user 611 Apr 12 14:18 .pearrc
drwx------ 8 ec2-user ec2-user 193 Apr 12 14:18 .
drwxrwxr-x 10 ec2-user apache 122 Apr 12 14:19 pear // as you can see my pear folder has the correct permissions.
[ec2-user@ip-172-31-90-218 ~]$ cd pear
[ec2-user@ip-172-31-90-218 pear]$ ls
bin cfg data docs man php.ini-gopear share tests www
[ec2-user@ip-172-31-90-218 pear]$ cd share
[ec2-user@ip-172-31-90-218 share]$ ls
pear
[ec2-user@ip-172-31-90-218 share]$ cd pear
[ec2-user@ip-172-31-90-218 pear]$ ls -alrt
total 108
drwxrwxr-x 3 ec2-user apache 18 Apr 12 14:18 ..
drwxrwxr-x 3 ec2-user apache 108 Apr 12 14:18 .channels
drwxrwxr-x 2 ec2-user apache 21 Apr 12 14:18 Archive
drwxrwxr-x 2 ec2-user apache 24 Apr 12 14:18 Console
drwxrwxr-x 3 ec2-user apache 36 Apr 12 14:18 Structures
drwxrwxr-x 2 ec2-user apache 22 Apr 12 14:18 XML
drwxrwxr-x 2 ec2-user apache 23 Apr 12 14:18 OS
-rw-rw-r-- 1 ec2-user apache 20562 Apr 12 14:18 System.php
-rw-rw-r-- 1 ec2-user apache 1049 Apr 12 14:18 peclcmd.php
-rw-rw-r-- 1 ec2-user apache 35467 Apr 12 14:18 PEAR.php
-rw-rw-r-- 1 ec2-user apache 15052 Apr 12 14:18 pearcmd.php
drwxrwxr-x 11 ec2-user apache 4096 Apr 12 14:18 PEAR
drwxrwxr-x 5 ec2-user apache 214 Apr 12 14:21 .registry
drwxrwxr-x 2 ec2-user apache 126 Apr 12 14:21 Mail
-rw-rw-r-- 1 ec2-user apache 0 Apr 12 14:21 .lock
-rw-rw-r-- 1 ec2-user apache 7542 Apr 12 14:21 .filemap
-rw-rw-r-- 1 ec2-user apache 0 Apr 12 14:21 .depdblock
-rw-rw-r-- 1 ec2-user apache 2727 Apr 12 14:21 .depdb
-rw-rw-r-- 1 ec2-user apache 9878 Apr 12 14:40 Mail.php // Mail.php should be accessible by my script.
drwxrwxr-x 11 ec2-user apache 282 Apr 12 14:40 .
该脚本通过JavaScript运行，单击按钮。
任何人都可以告诉我为什么我会在执行chown命令后获得权限错误？
我将把它移到一个答案，因为看起来这是通过双重检查日志解决你的问题。
chmod -R 755 pear
Chmod 755为文件设置了755权限。 755表示所有者的完全权限以及其他人的读取和执行权限。
换句话说，仅仅因为你是所有者并不意味着你拥有权限。