PHP Startup: Unable to load dynamic library_PHP教程

昨天幫一朋友設定管理員結果發現apache日誌中有PHP Warning: PHP Startup: Unable to load dynamic library 提示了，然後調試資料庫連接發現提示Call to undefined function mysql_connect()錯誤，這樣就想到了是mysql沒有載入成功了，下面我們一起來看看問題解決辦法。
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串連代碼

echo 'a';
$cn = mysql_connect("localhost",'www.bKjia.c0m','你的mysql使用者密碼') or die(mysql_error());
if( $cn )
{
echo phpinfo();
}
else
{
echo 'mysql connect fail';
}
?>

因為伺服器使用的是安全php.ini所在沒有錯誤顯示，於時相看了apache安裝目錄的logs的errors.log日誌文

件發現如下錯誤

PHP Warning: PHP Startup: Unable to load dynamic library

'D:\myserver\php\ext\php_mysql.dll' - xd5xd2xb2xbbxb5xbdxd6xb8xb6xa8xb5xc4xc4

xa3xbfxe9xa1xa3rn in Unknown on line 0
PHP Warning: PHP Startup: Unable to load dynamic library

'D:\myserver\php\ext\php_mysqli.dll' - xd5xd2xb2xbbxb5xbdxd6xb8xb6xa8xb5xc4

xc4xa3xbfxe9xa1xa3rn in Unknown on line 0

[Tue Dec 31 09:05:15 2013] [error] [client 127.0.0.1] PHP Fatal error: Call to undefined

function mysql_connect() in E:\www\a.php on line 2, referer: www.bKjia.c0m[Tue Dec 31 09:05:16 2013] [error] [client 127.0.0.1] PHP Fatal error: Call to undefined

function mysql_connect() in E:\www\a.php on line 2, referer: http://localhost/
[Tue Dec 31 09:05:17 2013] [error] [client 127.0.0.1] PHP Fatal error: Call to undefined

function mysql_connect() in E:\www\a.php on line 2, referer: http://localhost/
[Tue Dec 31 09:06:04 2013] [error] [client 127.0.0.1] PHP Fatal error: Call to undefined

function mysql_connect() in E:\www\a.php on line 3, referer: http://localhost/
[Tue Dec 31 09:06:05 2013] [error] [client 127.0.0.1] PHP Fatal error: Call to undefined

function mysql_connect() in E:\www\a.php on line 3, referer: http://localhost/
[Tue Dec 31 09:06:05 2013] [error] [client 127.0.0.1] PHP Fatal error: Call to undefined

function mysql_connect() in E:\www\a.php on line 3, referer: http://localhost/
[Tue Dec 31 09:06:05 2013] [error] [client 127.0.0.1] PHP Fatal error: Call to undefined

function mysql_connect() in E:\www\a.php on line 3, referer: http://localhost/
[Tue Dec 31 09:06:06 2013] [error] [client 127.0.0.1] PHP Fatal error: Call to undefined

function mysql_connect() in E:\www\a.php on line 3, referer: www.bKjia.c0m

[Tue Dec 31 09:06:06 2013] [error] [client 127.0.0.1] PHP Fatal error: Call to undefined

function mysql_connect() in E:\www\a.php on line 3, referer: http://localhost/

日誌中有這麼一句

PHP Startup: Unable to load dynamic library 'D:\myserver\php\ext\php_mysql.dll' 這個意思是

沒有載入成功php_mysql檔案了，還有一點是提示 PHP Fatal error: Call to undefined function

mysql_connect(),，這個是mysql沒有串連成功也就是載入mysql庫失敗了，根據分析有兩種可能一是檔案不

存在，這個問題不存因為我以前用的是這個php解壓包，2是伺服器環境變數問題，如果是環境變數有兩種解

決辦法

1，是直接在windows增加環境變數

2，直接把在d:PHP裡找到php5ts.dll,libmysql.dll將其複製到c:/winnt/system32下(winNT/2000的機器),

而winXP/2003是複製到c:/windows/system32下即可

記住複製到system目錄之後必須重記apache環境，如我再測試http://localhost/a.php 就可以看到

輸出的phpinfo相關資訊了，本站原創文章轉載註明來源www.bKjia.c0m

更多詳細內容請查看：http://www.bKjia.c0m/phper/linux-php/56512.htm

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