轉自:http://wangye.org/blog/archives/266/
什么是PEAR
來(lái)自百度百科:PEAR是PHP擴展與應用庫(the PHP Extension and Application Repository)的縮寫(xiě)。它是一個(gè)PHP擴展及應用的一個(gè)代碼倉庫,簡(jiǎn)單地說(shuō),PEAR之于PHP就像是CPAN(Comprehensive Perl Archive Network)之于Perl。
由此可見(jiàn)PEAR是PHP代碼的倉庫,在這里可以找到很多有用的代碼,避免我們重復寫(xiě)一些功能,但是PEAR代碼包并不是直接通過(guò)HTTP網(wǎng)站下載的,我們需要安裝PEAR。
如何獲取并安裝PEAR
建議:下面操作在Windows 7環(huán)境下完成,同樣適用于Windows XP/2003/Vista/2008系統,部分操作帶有嘗試性,為了避免彎路,建議先看完本文,然后再進(jìn)行相關(guān)操作。
如果PHP目錄下沒(méi)有自帶PEAR,即找不到go-pear.php文件,那么就需要我們手動(dòng)下載go-pear.php文件,點(diǎn)擊這里下載并另存為go-pear.php,這個(gè)文件放到php.exe所在的PHP安裝目錄下,我這里安裝目錄是D:\php5(下文以此目錄為準),那么go-pear.php的位置應該是D:\php5\go-pear.php。
開(kāi)始 – 運行,輸入cmd,啟動(dòng)命令提示符,輸入以下命令,主要是切換到go-pear.php目錄下,然后執行這個(gè)PHP腳本文件:
123 | cd D:\php5D:php go-pear.php |
遺憾的是可能由于我的PHP版本太新,上述操作提示失敗,具體的信息如下:
Deprecated: Assigning the return value of new by reference is deprecated in D:\php5\go-pear.php on line 733
Sorry! Your PHP version is too new (5.3.8) for this go-pear.
Instead use http://pear.php.net/go-pear.phar for a more stable and current version of go-pear, more suited to your PHP version.
Thank you for your coopertion and sorry for the inconvenience!
意思是要求我們到http://pear.php.net/go-pear.phar下載go-pear.phar文件,然后取代go-pear.php再試。下載好go-pear.phar文件并放到D:\php5文件夾中,執行下面的命令:
123 | cd D:\php5D:php go-pear.phar |
這時(shí)出現:
12 | Are you installing a system-wide PEAR or a local copy?(system|local) [system] : |
按回車(chē)默認system然后繼續。以下是默認的pear的臨時(shí)、數據、配置、測試、執行目錄的設置:
12345678910111213141516171819 | Below is a suggested file layout for your new PEAR installation. Tochange individual locations, type the number in front of thedirectory. Type 'all' to change all of them or simply press Enter toaccept these locations. 1. Installation base ($prefix) : D:\php5 2. Temporary directory for processing : D:\php5\tmp 3. Temporary directory for downloads : D:\php5\tmp 4. Binaries directory : D:\php5 5. PHP code directory ($php_dir) : D:\php5\pear 6. Documentation directory : D:\php5\docs 7. Data directory : D:\php5\data 8. User-modifiable configuration files directory : D:\php5\cfg 9. Public Web Files directory : D:\php5\www10. Tests directory : D:\php5\tests11. Name of configuration file : C:\Windows\pear.ini12. Path to CLI php.exe : D:\php5 1-12, 'all' or Enter to continue: |
直接回車(chē)使用默認值然后繼續安裝。本來(lái)以為萬(wàn)事大吉的,可是偏偏在這里出現了錯誤:
Warning: date(): It is not safe to rely on the system’s timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected ‘UTC’ for ’8.0/no DST’ instead in phar://D:/php5/go-pear.phar/PEAR/Registry.php on line 1012
PEAR_Config::writeConfigFile fopen(‘C:\Windows\pear.ini’,'w’) failed (fopen(C:\Windows\pear.ini): failed to open stream: Permission denied)
看樣子是沒(méi)有權限寫(xiě)入C:\Windows\pear.ini,由于我使用的是Windows 7系統,然后普通用戶(hù)打開(kāi)的命令提示符,在這里當然沒(méi)有權限寫(xiě)入C:\Windows目錄了,看來(lái)要另辟蹊徑了?;氐絼偛臕re you installing a system-wide PEAR or a local copy?這段,為什么不選擇local copy呢?網(wǎng)上都是直接說(shuō)默認回車(chē)選擇system的,不想改寫(xiě)C:\Windows目錄,于是我重新執行php go-pear.phar,并且選擇local。
123 | Are you installing a system-wide PEAR or a local copy?(system|local) [system] : localPlease confirm local copy by typing 'yes' : yes |
好了,這下正常了:-)
1 | Would you like to alter php.ini <D:\php5\php.ini>? [Y/n] : |
然后就是上面這句,只有選擇Y同意修改php.ini。
123456 | php.ini <D:\php5\php.ini> include_path updated. Current include path : .;C:\php\pearConfigured directory : D:\php5\pearCurrently used php.ini (guess) : D:\php5\php.iniPress Enter to continue: |
接著(zhù)出現上面這段,看來(lái)沒(méi)有什么好改的,直接回車(chē)確認即可。
到這里應該能看到Thanks for using go-pear!這句了,那么恭喜你,PEAR總算是安裝成功了!
如何安裝PEAR Package包
接下來(lái)讓我們去PEAR網(wǎng)站上看看有什么需要的吧。PEAR每個(gè)包都有安裝命令的提示,比如說(shuō)MDB2這個(gè)包,上面已經(jīng)提示使用pear install MDB2命令安裝了,假設目錄還是D:\php5,那么我們利用下面的命令試試:
123 | cd D:\php5D:pear install MDB2 |
結果出現下面這個(gè)錯誤:
12345 | D:\php5>pear install MDB2downloading MDB2-2.4.1.tgz ...Starting to download MDB2-2.4.1.tgz (119,790 bytes)..........................done: 119,790 bytesERROR: failed to mkdir C:\php\pear\docs\MDB2\docs\examples |
無(wú)法創(chuàng )建目錄,看來(lái)又是權限問(wèn)題,索性以管理員身份啟動(dòng)cmd命令提示符,然后重新執行上面的命令。這次總算安裝成功了install ok!
好了,關(guān)于PEAR我就介紹到這兒了,更多的用法還是參考PEAR網(wǎng)站吧
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