安装了php发觉没有编译pear管理包的，只能动手安装了。
1.下载pear包：
wget http://pear.php.net/go-pear.phar
可能这个不是最新的，那就要根据提示下载更新的了。
2.执行：php go-pear.phar
打出如下提示
Below is a suggested file layout for your new PEAR installation. To
change individual locations, type the number in front of the directory. Type 'all' to change all of them or simply press Enter to accept these locations. 1. Installation base ($prefix) : /usr 2. Temporary directory for processing : /tmp/pear/install 3. Temporary directory for downloads : /tmp/pear/install 4. Binaries directory : /usr/bin 5. PHP code directory ($php_dir) : /usr/share/pear 6. Documentation directory : /usr/docs 7. Data directory : /usr/data 8. User-modifiable configuration files directory : /usr/cfg 9. Public Web Files directory : /usr/www 10. Tests directory : /usr/tests 11. Name of configuration file : /etc/pear.conf 1-11, 'all' or Enter to continue:如果不用修改各个路径，按下enter就可了。
如果要修改可以写上编码，如：1后按enter（修改的是安装目录）
1-11, 'all' or Enter to continue: 1
再输入目录即可。
(Use $prefix as a shortcut for '/usr', etc.)
Installation base ($prefix) [/usr] : /usr/local/pear3.测试
只要PATH路径包含4路径就可以直接运行pear，执行pear：
Commands:
build Build an Extension From C Source bundle Unpacks a Pecl Package channel-add Add a Channel channel-alias Specify an alias to a channel name channel-delete Remove a Channel From the List channel-discover Initialize a Channel from its server channel-info Retrieve Information on a Channel channel-login Connects and authenticates to remote channel server channel-logout Logs out from the remote channel server channel-update Update an Existing Channel clear-cache Clear Web Services Cache config-create Create a Default configuration file config-get Show One Setting config-help Show Information About Setting config-set Change Setting config-show Show All Settings convert Convert a package.xml 1.0 to package.xml 2.0 format cvsdiff Run a "cvs diff" for all files in a package cvstag Set CVS Release Tag download Download Package download-all Downloads each available package from the default channel info Display information about a package install Install Package list List Installed Packages In The Default Channel list-all List All Packages list-channels List Available Channels list-files List Files In Installed Package list-upgrades List Available Upgrades login Connects and authenticates to remote server [Deprecated in favor of channel-login] logout Logs out from the remote server [Deprecated in favor of channel-logout] makerpm Builds an RPM spec file from a PEAR package package Build Package package-dependencies Show package dependencies package-validate Validate Package Consistency pickle Build PECL Package remote-info Information About Remote Packages remote-list List Remote Packages run-scripts Run Post-Install Scripts bundled with a package run-tests Run Regression Tests search Search remote package database shell-test Shell Script Test sign Sign a package distribution file svntag Set SVN Release Tag uninstall Un-install Package update-channels Update the Channel List upgrade Upgrade Package upgrade-all Upgrade All Packages [Deprecated in favor of calling upgrade with no parameters] Usage: pear [options] command [command-options] <parameters> Type "pear help options" to list all options. Type "pear help shortcuts" to list all command shortcuts. Type "pear help <command>" to get the help for the specified command. 这样证明已经安装好了。