FreeBSD服务器升级PHP4到PHP5的方法

在FreeBSD下，可以通过portupgrade或portmaster的-o选项来升级port。

portupgrade -o {new/port} {old-port}
portmaster -o {new port dir in /usr/ports} {installed port}

一、请把原来的配置文件备份一下。

二、查看下php4的具体版本。

# pkg_info | grep php4

php4-4.4.9          PHP Scripting Language (Apache Module and CLI)

三、升级php4

通过portmaster的话，请输入以下命令：

# portmaster -o /usr/ports/lang/php5 php4-4.4.9 to upgrade php5

或者，你也可以通过portupgrade命令：

# portupgrade -o lang/php5 php4

** Detected a package name change: php4 (lang/php4) -> 'php5' (lang/php5)
--->  Upgrading 'php4-4.4.9' to 'php5-5.2.9' (lang/php5)
--->  Building '/usr/ports/lang/php5'
===>  Cleaning for php5-5.2.9
===>  Found saved configuration for php5-5.2.8
===>  Extracting for php5-5.2.9
=> MD5 Checksum OK for php-5.2.9.tar.bz2.
=> SHA256 Checksum OK for php-5.2.9.tar.bz2.
=> MD5 Checksum OK for suhosin-patch-5.2.9-0.9.7.patch.gz.
=> SHA256 Checksum OK for suhosin-patch-5.2.9-0.9.7.patch.gz.
......
.....
...===> SECURITY REPORT:
      This port has installed the following files which may act as network
      servers and may therefore pose a remote security risk to the system.
/usr/local/bin/php
/usr/local/bin/php-cgi

      If there are vulnerabilities in these programs there may be a security
      risk to the system. FreeBSD makes no guarantee about the security of
      ports included in the Ports Collection. Please type 'make deinstall'
      to deinstall the port if this is a concern.

      For more information, and contact details about the security
      status of this software, see the following webpage:

===>  Cleaning for php5-5.2.9
--->  Cleaning out obsolete shared libraries
[Updating the pkgdb
 in /var/db/pkg ... - 249 packages found (-0 +1) . done]

然后你需要重新配置php.ini，/usr/local/etc/php.ini。

四、还有php-extensions也需要升级。

portmaster -o /usr/ports/lang/php5-extensions php4-extensions-1.0