php、检车字符串中某个字段的位置strpos()

if (strpos($url, 'imagesListPage') !== false) {
  $link = "imagesListDetail.php?id=" . $row['id'] . '&' . $arr['query'];
} else {
  $link = "imagesDetail.php?id=" . $row['id'] . '&' . $arr['query'];
}