php链接sql server报错Fatal error: Call to undefined function mssql_connect()
PHP版本5.3.5
操作系统win7
使用mssql方式链接：
$hostname = '192.168.0.178:1435';
$username = 'test';
$password = 'test';
mssql_connect($hostname, $username, $password);
程序报错：
Fatal error: Call to undefined function mssql_connect()
使用phpinfo()，显示没有mssql信息
查看php.ini，已经有：
extension=php_mssql.dll
经验证，和上面的扩展无关，需要另一扩展：
extension=php_dblib.dll
加入之后重启apache，显示：
mssql
| MSSQL Support | enabled |
|---|---|
| Active Persistent Links | 0 |
| Active Links | 0 |
| Library version | FreeTDS |
| Directive | Local Value | Master Value |
|---|---|---|
| mssql.allow_persistent | On | On |
| mssql.batchsize | 0 | 0 |
| mssql.charset | no value | no value |
| mssql.compatability_mode | Off | Off |
| mssql.connect_timeout | 5 | 5 |
| mssql.datetimeconvert | On | On |
| mssql.max_links | Unlimited | Unlimited |
| mssql.max_persistent | Unlimited | Unlimited |
| mssql.max_procs | Unlimited | Unlimited |
| mssql.min_error_severity | 10 | 10 |
| mssql.min_message_severity | 10 | 10 |
| mssql.secure_connection | On | On |
| mssql.textlimit | Server default | Server default |
| mssql.textsize | Server default | Server default |
| mssql.timeout | 60 | 60 |
此文：http://www.lifangjin.com/archives/949
次下载地址：http://docs.moodle.org/20/en/Installing_MSSQL_for_PHP#Using_FreeTDS_on_Windows
另有此文：
http://blog.csdn.net/q356309936/article/details/7838260
http://www.th7.cn/Program/php/201303/129462.shtml
说明php5.3以上已不是原生支持mssql，也就是说，使用php_dblib.dll来支持mssql，而不是php_mssql.dll
此文转载至http://blog.csdn.net/qdujunjie/article/details/17381621
