1、先得安装freetds
wget ftp://ftp.freetds.org/pub/freetds/stable/freetds-1.1.5.tar.gz
tar zxvf freetds-1.1.5.tar.gz
./configure --prefix=/usr/local/freetds --with-tdsver=7.4 --enable-msdblib --enable-shared --enable-stati
make && make install
2、版本查看
# /usr/local/freetds/bin/tsql -C
在这里，我输入这个报错：/usr/local/freetds/bin/tsql: error while loading shared libraries: libiconv.so.2: cannot open shared object file: No such file or directory
解决办法很简单，建立libiconv.so.2的软连接即可（本系统是64位版本）
# ln -s /usr/local/lib/libiconv.so.2 /usr/lib64/libiconv.so.2
再是输入版本查看命令
# /usr/local/freetds/bin/tsql -C
3、安装PHP扩展pdo_dblib
# cd /root/php-5.4.39/ext/pdo_dblib/
# /usr/local/php/bin/phpize
# ./configure –with-php-config=/usr/local/php/bin/php-config –with-pdo-dblib=/usr/local/freetds
# make && make install