安裝環(huán)境
在安裝PEAR之前需要配置安裝PHP環(huán)境，如果沒(méi)有自帶PEAR
(直接訪問(wèn)并保存其首頁(yè)為go-pear.php)
PEAR安裝準(zhǔn)備
如果PHP運(yùn)行環(huán)境沒(méi)有自帶PEAR，則需要下載go-pear.php文件，同時(shí)保存在php.exe所在的目錄下。
PEAR安裝步驟
1、我這里用的是wamp集成環(huán)境，d:/wamp/bin/php/php5.2.5>go-pear，開始自動(dòng)安裝。
通過(guò)這個(gè)PEAR安裝截圖，可以看到首先需要確認(rèn)PEAR的安裝目錄結(jié)構(gòu)，系統(tǒng)通常能自動(dòng)識(shí)別。
2、確認(rèn)好PEAR在Windows下的安裝目錄結(jié)構(gòu)，回車，開始下載和安裝PEAR的默認(rèn)擴(kuò)展包，你也可以選擇是否同時(shí)安裝Pear_Frontend_Web-beta，Pear_Frontend_Gtk2，MDB2擴(kuò)展包。
3、PEAR默認(rèn)擴(kuò)展包安裝后，提示是否需要配置php.ini文件中的include_path選項(xiàng)指向pear的安裝目錄，當(dāng)然需要配置，否則無(wú)法使用，Y并回車，安裝包會(huì)自動(dòng)修改include_path選項(xiàng)。
PEAR安裝完成，雙擊PEAR_ENV.reg將相關(guān)信息導(dǎo)入注冊(cè)表，同時(shí)重啟Apache即可。
PEAR的其他安裝方法
如果PHP運(yùn)行環(huán)境自帶PEAR，則可以在PHP目錄下找到PEAR.DAT文件，雙擊這個(gè)文件即可進(jìn)行PEAR安裝，方式應(yīng)該類似上述安裝方式。同時(shí)注意修改PHP.INI中的include_path選項(xiàng)即可。
PEAR命令
在命令行方式下，運(yùn)用PEAR的相關(guān)命令可以安裝自己需要的PEAR安裝包。
pear help 列出pear的所有命令，類似于pear的命令幫助命令。
pear help <command> 列出某個(gè)pear命令的具體信息
pear help shortcuts 列出所有pear命令的簡(jiǎn)寫
pear list-all 列出所有可安裝的packages，很多，可以訪問(wèn)pear擴(kuò)展包列表找到需要的packages，再使用pear install命令安裝package。
(安裝pear時(shí)，可以讓其使用默認(rèn)值，一直回車完。)
接著安裝單元測(cè)試框架phpunit:
d:/wamp/bin/php/php5.2.5>pear channel-discover pear.phpunit.de
Adding Channel "pear.phpunit.de" succeeded
Discovery of channel "pear.phpunit.de" succeeded
d:/wamp/bin/php/php5.2.5>pear install phpunit/PHPUnit
Did not download optional dependencies: pear/Image_GraphViz, pear/Log, channel:/
/pear.symfony-project.com/YAML, use --alldeps to download automatically
phpunit/PHPUnit requires PEAR Installer (version >= 1.8.1), installed version is
1.6.1
phpunit/PHPUnit can optionally use package "pear/Image_GraphViz" (version >= 1.2
.1)
phpunit/PHPUnit can optionally use package "pear/Log"
phpunit/PHPUnit can optionally use package "channel://pear.symfony-project.com/Y
AML" (version >= 1.0.2)
phpunit/PHPUnit can optionally use PHP extension "pdo_sqlite"
phpunit/PHPUnit can optionally use PHP extension "soap"
phpunit/PHPUnit can optionally use PHP extension "xdebug" (version >= 2.0.5)
No valid packages found
install failed
(安裝phpunit失敗，此時(shí)通過(guò)pear upgrade pear更新pear后繼續(xù)安裝)
d:/wamp/bin/php/php5.2.5>pear upgrade pear
downloading PEAR-1.9.0.tgz ...
Starting to download PEAR-1.9.0.tgz (291,634 bytes)
......
d:/wamp/bin/php/php5.2.5>pear info pear
ABOUT PEAR.PHP.NET/PEAR-1.9.0
......
d:/wamp/bin/php/php5.2.5>pear channel-discover pear.phpunit.de
Channel "pear.phpunit.de" is already initialized
d:/wamp/bin/php/php5.2.5>pear install phpunit/PHPUnit
Unknown remote channel: pear.symfony-project.com
Did not download optional dependencies: pear/Image_GraphViz, pear/Log, channel:/
/pear.symfony-project.com/YAML, use --alldeps to download automatically
phpunit/PHPUnit can optionally use package "pear/Image_GraphViz" (version >= 1.2
.1)
phpunit/PHPUnit can optionally use package "pear/Log"
phpunit/PHPUnit can optionally use package "channel://pear.symfony-project.com/Y
AML" (version >= 1.0.2)
phpunit/PHPUnit can optionally use PHP extension "pdo_sqlite"
phpunit/PHPUnit can optionally use PHP extension "soap"
phpunit/PHPUnit can optionally use PHP extension "xdebug" (version >= 2.0.5)
downloading PHPUnit-3.4.13.tgz ...
Starting to download PHPUnit-3.4.13.tgz (254,903 bytes)
.....................................................done: 254,903 bytes
install ok: channel://pear.phpunit.de/PHPUnit-3.4.13
phpunit安裝完畢，可輸入phpunit測(cè)試
