Description
string 
odbc_error ( [resource connection_id] )
     Returns a six-digit ODBC state, or an empty string if there
     has been no errors.  If connection_id is
     specified, the last state of that connection is returned, else the
     last state of any connection is returned.
    
 
     This function returns meaningful value only if last odbc query failed
     (i.e. odbc_exec() returned FALSE).
    
 
     See also: odbc_errormsg() and
     odbc_exec().