我对网络服务器还很陌生。我有自己的 DDS，但没有安装 imap。我请我的 ISP 安装它，但他们收费很高。在我看来，这应该不是什么大事，所以我开始谷歌搜索，并偶然发现了这篇文章：http://www.electrictoolbox.com/install-php-imap-centos/。
好像我只需要执行 2 个命令：
sudo yum install php-imap
sude /etc/init.d/httpd graceful
我以“root”用户身份登录到我的服务器，这是他们提供给我的帐户。但是当我尝试第一个命令时，我得到了以下输出：
[root@dds ~]# sudo yum install php-imap
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* addons: mirror.oxilion.nl
* base: mirror.oxilion.nl
* epel: ftp.nluug.nl
* extras: mirror.oxilion.nl
* rpmfusion-free-updates: mirror01.th.ifl.net
* rpmfusion-free-updates-testing: mirror01.th.ifl.net
* rpmfusion-nonfree-updates: mirror01.th.ifl.net
* rpmfusion-nonfree-updates-testing: mirror01.th.ifl.net
* updates: mirror.oxilion.nl
Excluding Packages in global exclude list
Finished
Setting up Install Process
No package php-imap available.
Nothing to do
如何实现安装php的imap功能？
期待你的回信！
荷兰向您致以亲切的问候。
本·弗兰森
更新
输出自less /etc/yum.conf（前约 20 个空行）
[main]
cachedir=/var/cache/yum
keepcache=0
debuglevel=2
logfile=/var/log/yum.log
distroverpkg=redhat-release
tolerant=1
exactarch=1
obsoletes=1
gpgcheck=1
plugins=1
# Note: yum-RHN-plugin doesn't honor this.
metadata_expire=1h
installonly_limit = 5
# PUT YOUR REPOS HERE OR IN separate files named file.repo
# in /etc/yum.repos.d
exclude=apache* httpd* mod_* mysql* MySQL* da_* *ftp* exim* sendmail* php* bind-chroot*
** 更新 2 ** 您提供的命令的结果。
[root@dds ~]# rpm -q php httpd
package php is not installed
package httpd is not installed
[root@dds ~]#
[root@dds ~]# rpm -V php httpd
package php is not installed
package httpd is not installed
[root@dds ~]#
答案1
它肯定在那里。检查您的 yum 存储库配置，以/etc/yum.{conf,repos.d}确保该软件包没有因某种原因被排除。
答案2
用这个：
sudo yum 安装 --disableexcludes=all php-imap
这是一个一次性命令，用于安装 RPM，而无需修改排除列表。
对于 IMAP 服务器本身，我建议使用 dovecot，它只需要一些额外的配置就可以很好地工作。
答案3
@Rosco：我试过你的答案，至少 php-imap 现在已安装完毕！但我也调用了重新启动 httpd-service，但在我的 php 文件中，我仍收到一条未定义函数 imap_open 的消息……
命令输出：
[root@dds ~]# sudo yum install --disableexcludes=all php-imap
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* addons: mirror.oxilion.nl
* base: mirror.oxilion.nl
* epel: ftp.nluug.nl
* extras: mirror.oxilion.nl
* rpmfusion-free-updates: mirror01.th.ifl.net
* rpmfusion-free-updates-testing: mirror01.th.ifl.net
* rpmfusion-nonfree-updates: mirror01.th.ifl.net
* rpmfusion-nonfree-updates-testing: mirror01.th.ifl.net
* updates: mirror.oxilion.nl
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package php-imap.x86_64 0:5.1.6-27.el5 set to be updated
--> Processing Dependency: php-common = 5.1.6-27.el5 for package: php-imap
--> Processing Dependency: libc-client.so.1()(64bit) for package: php-imap
--> Running transaction check
---> Package libc-client.x86_64 0:2004g-2.2.1 set to be updated
---> Package php-common.x86_64 0:5.1.6-27.el5 set to be updated
--> Finished Dependency Resolution
Dependencies Resolved
================================================================================
Package Arch Version Repository Size
================================================================================
Installing:
php-imap x86_64 5.1.6-27.el5 base 54 k
Installing for dependencies:
libc-client x86_64 2004g-2.2.1 base 515 k
php-common x86_64 5.1.6-27.el5 base 153 k
Transaction Summary
================================================================================
Install 3 Package(s)
Upgrade 0 Package(s)
Total download size: 722 k
Is this ok [y/N]: y
Downloading Packages:
(1/3): php-imap-5.1.6-27.el5.x86_64.rpm | 54 kB 00:00
(2/3): php-common-5.1.6-27.el5.x86_64.rpm | 153 kB 00:00
(3/3): libc-client-2004g-2.2.1.x86_64.rpm | 515 kB 00:00
--------------------------------------------------------------------------------
Total 1.8 MB/s | 722 kB 00:00
Running rpm_check_debug
Running Transaction Test
Finished Transaction Test
Transaction Test Succeeded
Running Transaction
Installing : php-common 1/3
Installing : libc-client 2/3
Installing : php-imap 3/3
Installed:
php-imap.x86_64 0:5.1.6-27.el5
Dependency Installed:
libc-client.x86_64 0:2004g-2.2.1 php-common.x86_64 0:5.1.6-27.el5
Complete!
[root@dds ~]# sudo /etc/init.d/httpd graceful