为什么我不能使用PHP连接到Sql Server？

Question

I wrote code as below:

<?php
    $conn = mssql_connect("xx.xx.xx.xx", "username", "password") 
            or die("Can't connect to server ".mssql_error());
    echo "Success";
    mssql_close($conn);
?>

The error is:

PHP Warning: mssql_connect() [function.mssql-connect]: Unable to connect to server: xx.xx.xx.xx in xxxxxxx\\conn.php on line 2 PHP Fatal error: Call to undefined function mssql_error() in xxxxxxx\\conn.php on line 3

The server is Apache2.2, the version of Sql Server is 2005, the version of PHP is 5.2.5, and I remove the ; before extension=php_mssql.dll and there is a php_mssql.dll in the ext directory

Answer 1

Use mssql_get_last_message()

<?php
    $conn = mssql_connect("xx.xx.xx.xx", "username", "password") 
            or die("Can't connect to server ".mssql_get_last_message());
    echo "Success";
    mssql_close($conn);
?>

Answer 2

服务启动时，是否可以检查apache日志中mssql扩展是否有问题？