Returns the error code from last connect call
(PECL maxdb:1.0-7.6.00.38)
int maxdb_connect_errno ( )
The maxdb_connect_errno() function will return the last error code number
for last call to maxdb_connect().
If no errors have occured, this function will return zero.
Return Values
An error code value for the last call to maxdb_connect(), if it failed.
zero means no error occurred.