貼りまちがい

function get_tsurisen($tonyu_kingaku, $konyu_kingaku) {
 $tsurisen_maisu = null;
 $list = array(1000, 500, 100, 50, 10);
 $tsuri = $tonyu_kingaku - $konyu_kingaku;
 for ($i = 0; $i < count($list); ++$i) {
  $tsurisen_maisu[$list[$i]] = 0;
  while ($tsuri >= $list[$i]) {
   $tsurisen_maisu[$list[$i]]++;
   $tsuri -= $list[$i];
  }
 }
 return $tsurisen_maisu;
}