Class: ResultSetIterator

This can be returned by your class's getIterator() method, but of course you can also implement your own (e.g. to get better performance, by using direct driver calls and avoiding other side-effects inherent in ResultSet scrolling functions -- e.g. beforeFirst() / afterLast(), etc.).

Important: ResultSet iteration does rewind the resultset if it is not at the start. Not all drivers support reverse scrolling, so this may result in an exception in some cases (Oracle).

Developer note: The implementation of this class is a little weird because it fetches the array _early_ in order to answer valid() w/o needing to know total num of fields. Remember the way iterators work:

 $it = $obj->getIterator();
 for($it->rewind(); $it->valid(); $it->next()) {
  $key = $it->current();
  $val = $it->key();
  echo "$key = $val\n";
 }
 unset($it);

Tags:

constructor __construct [line 60]

method current [line 99]

method key [line 90]

method next [line 109]

method rewind [line 69]

method valid [line 81]