MSSQL only allows one HRESULT open per connection. If you have a query with a server side cursor open any subsequent queries using that connection will fail.
(PHP 4, PHP 5, PECL odbtp >= 1.1.1)
mssql_free_result — Free result memory
This function was REMOVED in PHP 7.0.0.
Alternatives to this function include:
$result
) : boolmssql_free_result() only needs to be called if you are worried about using too much memory while your script is running. All result memory will automatically be freed when the script ends. You may call mssql_free_result() with the result identifier as an argument and the associated result memory will be freed.
成功时返回 TRUE， 或者在失败时返回 FALSE。
Example #1 mssql_free_result() example
<?php
// Select some data from a table
$query = mssql_query('SELECT * FROM [php].[dbo].[persons]', $link);
// Handle query result here
// When we're done we free the result by calling
// mssql_free_result like so:
mssql_free_result($query);
?>
MSSQL only allows one HRESULT open per connection. If you have a query with a server side cursor open any subsequent queries using that connection will fail.