Question

<?php

// $searchResult is type of Outcome
// This is what we do:
dList::lessAnchor($searchResult)->showElement();
dList::moreAnchor($searchResult)->showElement();

/**
* @returns vAnchor (can get showed with showElement() - not part of the problem)
*/
public static function lessAnchor(Outcome $searchResult){
  $searchData = $searchResult->searchData;
  $searchData->Page = $searchData->Page - 1; // (!1)
  return self::basicAnchor($searchData, "Back");
}

/**
* @returns vAnchor (can get showed with showElement() - not part of the problem)
*/
public static function moreAnchor(Outcome $searchResult){
  $searchData=$searchResult->searchData;
  $searchData->Page = $searchData->Page + 1; // (!2)
  return self::basicAnchor($searchData, "More");
}

When I call dList::lessAnchor() on $searchResult, it modifies the property of $searchData->Page by decreasing it by 1 as you see, marked at line with (!1). After a while (one line below), I call dList::moreAnchor() on $searchResult again.

为什么我看<代码>Page属性在<代码>(!2)上下降1? 我没有通过<代码>查询<>。

Answer 1

查阅:这是打算的行为。

截至购买力平价5,一个物体变量的吨数含有该物体本身的价值。它只包含一个物体识别标志,允许物体进入者找到实际物体。 如果某一物体通过论证、送回或转让给另一个可变<>/strong>,则不同的变数不是别的:y 持有识别符号的复制件,标明同一物体。

如果你想避免这种情况的话,请 clone Youbject, 哪里是免费的。这只是:

public static function lessAnchor(Outcome $searchResult){ $searchData = clone $newResult->searchData; //$searchData now is a new object $searchData->Page=$searchData->Page-1; // (!1) return self::basicAnchor($searchData,"Back"); }

友情链接