[Linux]安裝PHP-5.2版本到CentOS

由於CentOS默認yum安裝php的版本是5.1.6，使用yum update命令不能升級php到最新版本。並且PHP在5.2之前都有個小小的錯誤，升級到最新版的PHP是非常有必要的。以下為在CentOS5.4用yum安裝PHP5.2.9的步驟。
vi /etc/yum.repos.d/CentOS-Base.repo 文件末尾添加以下代碼：
[c5-testing]
name=CentOS-5 Testing
baseurl=http://dev.centos.org/centos/$releasever/testing/$basearch/
enabled=0
gpgcheck=1
gpgkey=http://dev.centos.org/centos/RPM-GPG-KEY-CentOS-testing
保存此文件，執行yum --disablerepo=* --enablerepo=c5-testing install php 接著根據提示Y同意執行，另外如果裝有ZEND，則根據實際情況是否需要修改zend在php.ini和選擇正確對應的ZendOptimizer.so，然後再執行service httpd restart 重啟Apache。最後輸入php -v 檢查是否已經升級成功。以下為在ssh輸入及顯示的過程：

yum --disablerepo=* --enablerepo=c5-testing install php
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
c5-testing                                               | 1.9 kB     00:00
c5-testing/primary_db                                    | 502 kB     00:01
Setting up Install Process
Resolving Dependencies
--> Running transaction check
--> Processing Dependency: php = 5.1.6-23.2.el5_3 for package: php-devel
---> Package php.i386 0:5.2.9-2.el5.centos set to be updated
--> Processing Dependency: php-common = 5.2.9-2.el5.centos for package: php
--> Processing Dependency: php-cli = 5.2.9-2.el5.centos for package: php
--> Running transaction check
---> Package php-cli.i386 0:5.2.9-2.el5.centos set to be updated
--> Processing Dependency: php-common = 5.1.6-23.2.el5_3 for package: php-xml
--> Processing Dependency: php-common = 5.1.6-23.2.el5_3 for package: php-gd
--> Processing Dependency: php-common = 5.1.6-23.2.el5_3 for package: php-xmlrpc
--> Processing Dependency: php-common = 5.1.6-23.2.el5_3 for package: php-mbstring
--> Processing Dependency: php-common = 5.1.6-23.2.el5_3 for package: php-ldap
--> Processing Dependency: php-common = 5.1.6-23.2.el5_3 for package: php-pdo
---> Package php-common.i386 0:5.2.9-2.el5.centos set to be updated
---> Package php-devel.i386 0:5.2.9-2.el5.centos set to be updated
--> Running transaction check
---> Package php-gd.i386 0:5.2.9-2.el5.centos set to be updated
---> Package php-ldap.i386 0:5.2.9-2.el5.centos set to be updated
---> Package php-mbstring.i386 0:5.2.9-2.el5.centos set to be updated
---> Package php-pdo.i386 0:5.2.9-2.el5.centos set to be updated
---> Package php-xml.i386 0:5.2.9-2.el5.centos set to be updated
---> Package php-xmlrpc.i386 0:5.2.9-2.el5.centos set to be updated
--> Finished Dependency Resolution

Dependencies Resolved

================================================================================
Package            Arch       Version                   Repository        Size
================================================================================
Updating:
php                i386       5.2.9-2.el5.centos        c5-testing       1.2 M
Updating for dependencies:
php-cli            i386       5.2.9-2.el5.centos        c5-testing       2.4 M
php-common         i386       5.2.9-2.el5.centos        c5-testing       237 k
php-devel          i386       5.2.9-2.el5.centos        c5-testing       547 k
php-gd             i386       5.2.9-2.el5.centos        c5-testing       112 k
php-ldap           i386       5.2.9-2.el5.centos        c5-testing        31 k
php-mbstring       i386       5.2.9-2.el5.centos        c5-testing       1.1 M
php-pdo            i386       5.2.9-2.el5.centos        c5-testing        62 k
php-xml            i386       5.2.9-2.el5.centos        c5-testing        97 k
php-xmlrpc         i386       5.2.9-2.el5.centos        c5-testing        52 k

Transaction Summary
================================================================================
Install      0 Package(s)
Update      10 Package(s)
Remove       0 Package(s)

Total download size: 5.8 M
Is this ok [y/N]: y
Downloading Packages:
(1/10): php-ldap-5.2.9-2.el5.centos.i386.rpm             |  31 kB     00:00
(2/10): php-xmlrpc-5.2.9-2.el5.centos.i386.rpm           |  52 kB     00:00
(3/10): php-pdo-5.2.9-2.el5.centos.i386.rpm              |  62 kB     00:00
(4/10): php-xml-5.2.9-2.el5.centos.i386.rpm              |  97 kB     00:00
(5/10): php-gd-5.2.9-2.el5.centos.i386.rpm               | 112 kB     00:00
(6/10): php-common-5.2.9-2.el5.centos.i386.rpm           | 237 kB     00:01
(7/10): php-devel-5.2.9-2.el5.centos.i386.rpm            | 547 kB     00:01
(8/10): php-mbstring-5.2.9-2.el5.centos.i386.rpm         | 1.1 MB     00:02
(9/10): php-5.2.9-2.el5.centos.i386.rpm                  | 1.2 MB     00:02
(10/10): php-cli-5.2.9-2.el5.centos.i386.rpm             | 2.4 MB     00:03
--------------------------------------------------------------------------------
Total                                           348 kB/s | 5.8 MB     00:16
warning: rpmts_HdrFromFdno: Header V3 DSA signature: NOKEY, key ID 7203f491
c5-testing/gpgkey                                        | 1.8 kB     00:00
Importing GPG key 0x7203F491 "CentOS-testing (CentOS Developers testing key) <centos@centos.org>" from http://dev.centos.org/centos/RPM-GPG-KEY-CentOS-testing
Is this ok [y/N]: y
Running rpm_check_debug
Running Transaction Test
Finished Transaction Test
Transaction Test Succeeded
Running Transaction
Updating       : php-common                                              1/20
warning: /etc/php.ini created as /etc/php.ini.rpmnew
Updating       : php-cli                                                 2/20
Updating       : php                                                     3/20
Updating       : php-mbstring                                            4/20
Updating       : php-gd                                                  5/20
Updating       : php-xmlrpc                                              6/20
Updating       : php-devel                                               7/20
Updating       : php-xml                                                 8/20
Updating       : php-ldap                                                9/20
Updating       : php-pdo                                                10/20
Cleanup        : php-common                                             11/20
Cleanup        : php-mbstring                                           12/20
Cleanup        : php-gd                                                 13/20
Cleanup        : php-xmlrpc                                             14/20
Cleanup        : php                                                    15/20
Cleanup        : php-devel                                              16/20
Cleanup        : php-xml                                                17/20
Cleanup        : php-ldap                                               18/20
Cleanup        : php-pdo                                                19/20
Cleanup        : php-cli                                                20/20

Updated:
php.i386 0:5.2.9-2.el5.centos

Dependency Updated:
php-cli.i386 0:5.2.9-2.el5.centos     php-common.i386 0:5.2.9-2.el5.centos
php-devel.i386 0:5.2.9-2.el5.centos   php-gd.i386 0:5.2.9-2.el5.centos
php-ldap.i386 0:5.2.9-2.el5.centos    php-mbstring.i386 0:5.2.9-2.el5.centos
php-pdo.i386 0:5.2.9-2.el5.centos     php-xml.i386 0:5.2.9-2.el5.centos
php-xmlrpc.i386 0:5.2.9-2.el5.centos

Complete!
[root@hkvps1 ~]# service httpd restart
Stopping httpd:                                            [  OK  ]
Starting httpd:                                            [  OK  ]
[root@hkvps1 ~]# php -v
PHP 5.2.9 (cli) (built: Jul  8 2009 06:03:36)
Copyright (c) 1997-2009 The PHP Group
Zend Engine v2.2.0, Copyright (c) 1998-2009 Zend Technologies
with Zend Optimizer v3.3.9, Copyright (c) 1998-2009, by Zend Technologies

資料來源：http://blog.lilujun.com/post/1208/