PHP foreach复制输出数据的最后一次迭代

Question

非常感谢帮助人员.即使你发现一切都很好,你也给了我解决它的重要线索.

//解决方案清除第一个迭代过程,因为我计划在页面开始时完成所有操作,并将其移至主迭代.我真的不知道发生了什么,只是想知道引用变量,然后再重新使用它进行新的迭代.

继承人的工作代码:

foreach ($groups as $group) {                   
$group['games'] = db_getGamesElimbyGroup ($group['id']);
    $class_by_groupID = $group['id'];

foreach ($group['games'] as $game) {
   $game['players'] = db_getPlayerElimbyGames($game['id']);             
   $class_by_gameID = $game['id']; ?>
   <div class="group<?=$class_by_groupID?> game<?=$class_by_gameID?> item clearfix">

    <?  foreach ($game['players'] as $player) { ?>

            <div class="player box<?=$player['casa_fora']?> clearfix">
                <div class="thumb" style="background-image:url(<?=$home_path.$player['thumb']?>)"></div>
                <div class="name"><?=$player['nome']?></div>
                <div class="result"><?=$player['equipa_result']?></div>
            </div>

            <?  } ?>
       </div>

     <?}
 }

// END OF SOLUTION //新

在获取数组之前,我用它做了这个操作:

$groups = db_getCountGroupsElim();

foreach ($groups as &$group) {

   foreach ($group['games'] as &$game) {
      $game['players'] = db_getPlayerElimbyGames($game['id']);
   }
}

使用引用将查询结果添加到同一个数组中.如果按原样使用数组,或者JSON形式可以使用它.我怀疑它可能必须是关于使用引用和相同的变量名称？!

//旧

我有一个阵列,有几个级别,主要是组,游戏,玩家

团体游戏和游戏得到了玩家.

像这样.

JSON

 [{"id":"9","name":"Oitavos","games":[{"id":"49","next_game_id":"58","players":[{"equipa_result":"0","casa_fora":"1","nome":"Lucas Neves Castro","thumb":"uploads\/1364040943\/thumb\/dsc01491.jpg","jogador_id":"2"},{"equipa_result":"1","casa_fora":"2","nome":"Jo\u00e3o Monteiro Ribeiro","thumb":"uploads\/1364249922\/thumb\/foto.png","jogador_id":"6"}]},{"id":"50","next_game_id":"58","players":[{"equipa_result":"1","casa_fora":"1","nome":"Lu\u00eds Salgado","thumb":"uploads\/1364229837\/thumb\/20130322171159.jpg","jogador_id":"1"},{"equipa_result":"0","casa_fora":"2","nome":"Pedro Fernandes","thumb":"uploads\/1364759964\/thumb\/sam_0255.jpg","jogador_id":"32"}]},{"id":"51","next_game_id":"59","players":[{"equipa_result":"1","casa_fora":"1","nome":"Pedro Costa","thumb":"uploads\/1364126670\/thumb\/pedro.jpg","jogador_id":"12"},{"equipa_result":"0","casa_fora":"2","nome":"Jos\u00e9 Vieira","thumb":"uploads\/1364134124\/thumb\/19084_540280705996807_1199242145_n.jpg","jogador_id":"13"}]},{"id":"52","next_game_id":"59","players":[{"equipa_result":"1","casa_fora":"1","nome":"Jos\u00e9 Peixoto","thumb":"uploads\/1364099591\/thumb\/foto.jpg","jogador_id":"10"},{"equipa_result":"0","casa_fora":"2","nome":"Pedro Sousa","thumb":"uploads\/1364150593\/thumb\/552121_566863856670835_1922080433_n.jpg","jogador_id":"16"}]},{"id":"53","next_game_id":"60","players":[{"equipa_result":"1","casa_fora":"1","nome":"Lu\u00eds Carvalho","thumb":"uploads\/1364150836\/thumb\/598590_119690038195872_1425120299_n.jpg","jogador_id":"17"},{"equipa_result":"0","casa_fora":"2","nome":"Jo\u00e3o Fernandes","thumb":"uploads\/1364171606\/thumb\/img_20130314_222526.jpg","jogador_id":"24"}]},{"id":"54","next_game_id":"60","players":[{"equipa_result":"1","casa_fora":"1","nome":"Patr\u00edcio Correia Santos","thumb":"uploads\/1364156207\/thumb\/dsc01877.jpg","jogador_id":"19"},{"equipa_result":"0","casa_fora":"2","nome":"Tiago Fernandes","thumb":"uploads\/1364171076\/thumb\/4232037_big.jpg","jogador_id":"23"}]},{"id":"55","next_game_id":"61","players":[{"equipa_result":"0","casa_fora":"1","nome":"Carlos Miguel Da Silva Lopes","thumb":"uploads\/1364217431\/thumb\/miguel1.jpg","jogador_id":"26"},{"equipa_result":"1","casa_fora":"2","nome":"Luis Silva","thumb":"uploads\/1364562821\/thumb\/177158_390926850971196_1987889821_o.jpg","jogador_id":"31"}]},{"id":"56","next_game_id":"61","players":[{"equipa_result":"0","casa_fora":"1","nome":"Tiago Teixeira Castro","thumb":"uploads\/1364220392\/thumb\/tiago.jpg","jogador_id":"27"},{"equipa_result":"1","casa_fora":"2","nome":"Hugo Pereira Castro","thumb":"uploads\/1364771622\/thumb\/263386_241332222564106_3344558_n.jpg","jogador_id":"29"}]}]},{"id":"10","name":"Quartos","games":[{"id":"58","next_game_id":"62","players":[{"equipa_result":"1","casa_fora":"1","nome":"Jo\u00e3o Monteiro Ribeiro","thumb":"uploads\/1364249922\/thumb\/foto.png","jogador_id":"6"},{"equipa_result":"0","casa_fora":"2","nome":"Lu\u00eds Salgado","thumb":"uploads\/1364229837\/thumb\/20130322171159.jpg","jogador_id":"1"}]},{"id":"59","next_game_id":"63","players":[{"equipa_result":"0","casa_fora":"1","nome":"Pedro Costa","thumb":"uploads\/1364126670\/thumb\/pedro.jpg","jogador_id":"12"},{"equipa_result":"1","casa_fora":"2","nome":"Jos\u00e9 Peixoto","thumb":"uploads\/1364099591\/thumb\/foto.jpg","jogador_id":"10"}]},{"id":"60","next_game_id":"62","players":[{"equipa_result":"1","casa_fora":"1","nome":"Patr\u00edcio Correia Santos","thumb":"uploads\/1364156207\/thumb\/dsc01877.jpg","jogador_id":"19"},{"equipa_result":"0","casa_fora":"2","nome":"Lu\u00eds Carvalho","thumb":"uploads\/1364150836\/thumb\/598590_119690038195872_1425120299_n.jpg","jogador_id":"17"}]},{"id":"61","next_game_id":"63","players":[{"equipa_result":"1","casa_fora":"1","nome":"Luis Silva","thumb":"uploads\/1364562821\/thumb\/177158_390926850971196_1987889821_o.jpg","jogador_id":"31"},{"equipa_result":"0","casa_fora":"2","nome":"Hugo Pereira Castro","thumb":"uploads\/1364771622\/thumb\/263386_241332222564106_3344558_n.jpg","jogador_id":"29"}]}]},{"id":"11","name":"Meias","games":[{"id":"62","next_game_id":"65","players":[{"equipa_result":"1","casa_fora":"1","nome":"Jo\u00e3o Monteiro Ribeiro","thumb":"uploads\/1364249922\/thumb\/foto.png","jogador_id":"6"},{"equipa_result":"0","casa_fora":"2","nome":"Patr\u00edcio Correia Santos","thumb":"uploads\/1364156207\/thumb\/dsc01877.jpg","jogador_id":"19"}]},{"id":"63","next_game_id":"65","players":[{"equipa_result":"0","casa_fora":"1","nome":"Jos\u00e9 Peixoto","thumb":"uploads\/1364099591\/thumb\/foto.jpg","jogador_id":"10"},{"equipa_result":"1","casa_fora":"2","nome":"Luis Silva","thumb":"uploads\/1364562821\/thumb\/177158_390926850971196_1987889821_o.jpg","jogador_id":"31"}]}]},{"id":"12","name":"3\u00ba e 4\u00ba","games":[{"id":"64","next_game_id":"0","players":[{"equipa_result":"0","casa_fora":"1","nome":"Patr\u00edcio Correia Santos","thumb":"uploads\/1364156207\/thumb\/dsc01877.jpg","jogador_id":"19"},{"equipa_result":"0","casa_fora":"2","nome":"Jos\u00e9 Peixoto","thumb":"uploads\/1364099591\/thumb\/foto.jpg","jogador_id":"10"}]}]},{"id":"13","name":"Final","games":[{"id":"65","next_game_id":"0","players":[{"equipa_result":"0","casa_fora":"1","nome":"Jo\u00e3o Monteiro Ribeiro","thumb":"uploads\/1364249922\/thumb\/foto.png","jogador_id":"6"},{"equipa_result":"0","casa_fora":"2","nome":"Luis Silva","thumb":"uploads\/1364562821\/thumb\/177158_390926850971196_1987889821_o.jpg","jogador_id":"31"}]}]}]

样品阵列

Array
(
[id] => 13
[name] => Final
[games] => Array
    (
        [0] => Array
            (
                [id] => 65
                [next_game_id] => 0
                [players] => Array
                    (
                        [0] => Array
                            (
                                [equipa_result] => 0
                                [casa_fora] => 1
                                [nome] => João Monteiro Ribeiro
                                [thumb] => uploads/1364249922/thumb/foto.png
                                [jogador_id] => 6
                            )

                        [1] => Array
                            (
                                [equipa_result] => 0
                                [casa_fora] => 2
                                [nome] => Luis Silva
                                [thumb] => uploads/1364562821/thumb/177158_390926850971196_1987889821_o.jpg
                                [jogador_id] => 31
                            )
                    )
            )
    )
)

而且我正在为每一个级别做一个foreach,创建可以使用css更容易设计样式的单个元素.

我的迭代是这样的:

foreach ($groups as $group) {                   

    $class_by_groupID = $group['id'];

foreach ($group['games'] as $game) {

   $class_by_gameID = $game['id']; ?>
   <div class="group<?=$class_by_groupID?> game<?=$class_by_gameID?> item clearfix">

    <?  foreach ($game['players'] as $player) { ?>

            <div class="player box<?=$player['casa_fora']?> clearfix">
                <div class="thumb" style="background-image:url(<?=$home_path.$player['thumb']?>)"></div>
                <div class="name"><?=$player['nome']?></div>
                <div class="result"><?=$player['equipa_result']?></div>
            </div>

            <?  } ?>
       </div>

     <?}
 }

好的,现在所有重要的代码都在这里,我在最后一组最后一个游戏的最后一个输出上得到了一个奇怪的结果.

这不是因为特定的组,我试图修改数组以获得更少的结果,仍然,相同的最后重复输出.

所以我的最后一个DIV,而不是获取最后一个记录的数据,它获得了前一个,并且被复制到两个HTML DIVS中,只是相同但重复.

任何提示或建议都将非常受欢迎.

提前致谢.

Answer 1

参考的foreach是我的第一个想法,但由于你的原始代码没有显示它我没有提到它.

为了将来参考,在PHP的foreach函数文档中,您可以阅读:

警告

即使在foreach循环之后,$ value和最后一个数组元素的引用仍然存在.建议通过unset()销毁它.

以下是如何解决问题的示例:

<?php
    $arr = array(1, 2, 3, 4);
    foreach ($arr as &$value) {
        $value = $value * 2;
    }
    // $arr is now array(2, 4, 6, 8)
    unset($value); // break the reference with the last element