服务器报错信息如下：

[22-Feb-2013 14:19:01] PHP Warning: PHP Startup: Unable to load dynamic library ‘/usr/local/php/lib/php/extensions/no-debug-non-zts-20060613/dba.so’ - libdb-4.5.so: cannot open shared object file: No such file or directory in Unknown on line 0
解决方法：

#安装Bdb

cd /root/soft

tar zxvf db-4.5.20.tar.gz

cd db-4.5.20

cd build_unix/

../dist/configure

make

make install

#安装bdb模块

cd /root/soft/php-5.2.17/ext/dba

/usr/local/php/bin/phpize

./configure –with-php-config=/usr/local/php/bin/php-config –with-db4=/usr/local/BerkeleyDB.4.5

make && make install