I believe the problem here is in how mssql_query handles result sets
that have multiple results returned, but none with rows (such as in
this bug where there are multiple commands executed and multiple errors
returned). In the php_mssql.c for PHP 4.3.4 the block at line 1145
reads:
while ((num_fields = dbnumcols(mssql_ptr->link)) <= 0 && retvalue ==
SUCCEED) {
retvalue = dbresults(mssql_ptr->link);
}
According to Microsoft
(http://msdn.microsoft.com/library/en-us/dblibc/dbc_pdc04e_52sz.asp),
however:
"You must call dbresults until it returns NO_MORE_RESULTS, or
any continued use of the DBPROCESS causes the DB-Library error
10038 'Results Pending'."
As this code in php_mssql.c currently stands it stops looping the empty
result sets too early becuase it's looking for SUCCEED instead of
NO_MORE_RESULTS. Changing this code to:
while ((num_fields = dbnumcols(mssql_ptr->link)) <= 0 && retvalue !=
NO_MORE_RESULTS) {
retvalue = dbresults(mssql_ptr->link);
}
causes both SQL Server error messages generated by the sample query in
the bug report to be correctly displayed and eliminates the fault.
Michael Sisolak
[EMAIL PROTECTED]
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