I have an object that implement XML parser. One of its' method is called when parser found start tag. If I use in this method functions who operating on associative array (i.e. each, next or current) that PHP engine run to end of this method and stopping. If I don't use flush() function in script then no content is sending to client. So if I use flush function then content generated before is sending.

There is some example:

class XMLParser {
var $parser; 
var $depth;
function XMLParser () {
	$depth = array();
	$this->parser = xml_parser_create();
	xml_set_object($this->parser,$this);
	xml_set_element_handler($this->parser,"open_tag","close_tag");
	xml_set_character_data_handler($this->parser,"cdata");
}
function open_tag($parser, $tag, $attrs) {
	echo "Before";
	flush();
	$atrybuty = array();
	$atrybuty["klucz1"] = "wartosc1";
	$atrybuty["klucz2"] = "wartosc2";
	reset($atrybuty);
	while (list($klucz, $wartosc) = each ($atrybuty)) {
		echo $klucz." => ".$wartosc.", "; 
	}
	echo "After";
	flush();
}
function close_tag($parser, $tag) {
...
}
function cdata($parser, $cdata) {
...
}
function parseFile($data) {
	xml_parse($this->parser,$data);
}
} // end of XMLParser object

$test = new XMLParser();                                  // create object
$test->parseFile('<A ID="hallo">PHP</A>');       // start parser