This short script

<?php

  $kbytes = 1024;
  $values[0] = 1030264522;
  $values[1] = 1292157002;
  for ( $i=0 ; $i<count($values) ; $i++ )
    print "values[$i] = " . $values[$i] . "\n";
  while ( ( $max = max ( $values ) ) > $kbytes ) {
    print "max = $max\n";
    for ( $i=0 ; $i<count($values) ; $i++ )
      if ( isset ( $values[$i] ) ) {
        $values[$i] /= $kbytes;
        print "values[$i] = " . $values[$i] . "\n";
      }
  }
  print "max = $max\n";

?>

outputs the following values:

values[0] = 1030264522
values[1] = 1292157002
max = 1292157002
values[0] = 1006117.6972656
values[1] = 1261872.0722656
max = 1261872.0722656
values[0] = 982.53681373596
values[1] = 1232.2969455719
max = 1232.2969455719
values[0] = 0.95950860716403
values[1] = 1.2034149859101
max = 0.95950860716403

All but the last max value are correct! (PHP3 gives the correct value)