php - 将数组添加到另一个数组(不是 array_push 或 array

php - 将数组添加到另一个数组(不是 array_push 或 array_merge)

转载作者：搜寻专家更新时间：2023-10-31 20:58:23

我是 PHP 的新手，在将数组推送到另一个数组时遇到了一些问题。有关详细信息，我想展示我的部分代码:

这是一个示例响应数据:

编辑:我有不止一个“sentenceArray”

{
  "data": [
    {
      "sentenceArray": [
        {
          "path": {
            "type": "walk",
            "nodes": [
              {
                "lat": 39.952614,
                "lng": 32.854491
              },
              {
                "lat": 39.952083,
                "lng": 32.857761
              }
            ]
          }
        },
        {
          "path": {
            "type": "bus",
            "nodes": [
              {
                "lat": 39.952418,
                "lng": 32.85727
              },
              {
                "lat": 39.952797,
                "lng": 32.856825
              },
              {
                "lat": 39.953102,
                "lng": 32.856438
              }
            ]
          }
        },
        {
          "path": {
            "type": "bus",
            "nodes": [
              {
                "lat": 39.964951,
                "lng": 32.841305
              },
              {
                "lat": 39.964785,
                "lng": 32.841514
              }
            ]
          }
        }
      ]
    },
    {
      "sentenceArray": [
        {
          "path": {
            "type": "walk",
            "nodes": [
              {
                "lat": 39.952614,
                "lng": 32.854491
              },
              {
                "lat": 39.952083,
                "lng": 32.857761
              }
            ]
          }
        },
        {
          "path": {
            "type": "bus",
            "nodes": [
              {
                "lat": 39.952418,
                "lng": 32.85727
              },
              {
                "lat": 39.952797,
                "lng": 32.856825
              },
              {
                "lat": 39.953102,
                "lng": 32.856438
              }
            ]
          }
        },
        {
          "path": {
            "type": "bus",
            "nodes": [
              {
                "lat": 39.964951,
                "lng": 32.841305
              },
              {
                "lat": 39.964785,
                "lng": 32.841514
              }
            ]
          }
        }
      ]
    }
  ]
}

这是我到目前为止所做的:

for($j = 0; $j < $l; $j++) {
        if($sentenceArray[$j]['path']['type'] == "bus") {
            if(isset($sentenceArray[$j]['path']['nodes'])){
                $busCount++;
                $nodes = $sentenceArray[$j]['path']['nodes'];
                for($k = 0, $c = count($nodes); $k < $c; $k++) {
                    $latlng = $nodes[$k];
                    array_push($arrBus,$latlng);
                }

            }
        }
    }

起初，我试图将数组插入一个数组，但我的代码将它们全部合并到一个数组中，而不是将两个单独的数组合并到一个数组中。顺便说一句，真实数据比这大得多，而且是动态生成的。所以总线阵列计数可以是两个或更多。作为新手 PHP 开发人员，这让我有点困惑。

让我告诉你我的目标是什么:

var lineCoordinates = {
  "0": [
    {
                                "lat": 39.952418,
                                "lng": 32.85727
                            },
                            {
                                "lat": 39.952797,
                                "lng": 32.856825
                            },
                            {
                                "lat": 39.953102,
                                "lng": 32.856438
                            }
  ],
  "1": [
    {
                                "lat": 39.964951,
                                "lng": 32.841305
                            },
                            {
                                "lat": 39.964785,
                                "lng": 32.841514
                            }
                            
                           
  ]
}

这个示例输出对我来说很管用。

我花了很多时间自己做这个，我也在网上阅读了我的帖子，但找不到解决方案。请不要评判我。正如我所说，我是新手。提前致谢。

顺便说一句，我先拉取数据时使用 json_decode()，最后使用 json_encode()。但我不需要提及它。

最佳答案

迭代data子数组，然后迭代sentenceArray，那么如果['path']['type']值为bus 和 ['path']['nodes'] 子数组存在，然后将该子数组作为单独的组存储在结果数组中。

代码:(Demo)

$array = json_decode($json, true);
foreach ($array['data'] as $datas) {
    foreach ($datas['sentenceArray'] as $subitem) {
        if ($subitem['path']['type'] == 'bus' && isset($subitem['path']['nodes'])) {
            $result[] = $subitem['path']['nodes'];
        }
    }
}
echo json_encode($result);

输出:

[[{"lat":39.952418,"lng":32.85727},{"lat":39.952797,"lng":32.856825},{"lat":39.953102,"lng":32.856438}],[{"lat":39.964951,"lng":32.841305},{"lat":39.964785,"lng":32.841514}],[{"lat":39.952418,"lng":32.85727},{"lat":39.952797,"lng":32.856825},{"lat":39.953102,"lng":32.856438}],[{"lat":39.964951,"lng":32.841305},{"lat":39.964785,"lng":32.841514}]]

这也适用于您的完整 json 输入字符串以提供:

[[{"lat":39.952418,"lng":32.85727},{"lat":39.952797,"lng":32.856825},{"lat":39.953102,"lng":32.856438},{"lat":39.953273,"lng":32.856239},{"lat":39.953713,"lng":32.855659},{"lat":39.954017,"lng":32.855296},{"lat":39.95498,"lng":32.854037},{"lat":39.955138,"lng":32.853829},{"lat":39.955317,"lng":32.853592},{"lat":39.955448,"lng":32.853421},{"lat":39.955638,"lng":32.853161},{"lat":39.955744,"lng":32.85303},{"lat":39.956395,"lng":32.852171},{"lat":39.957293,"lng":32.851087},{"lat":39.957668,"lng":32.850631},{"lat":39.957715,"lng":32.850579},{"lat":39.957854,"lng":32.850421},{"lat":39.957963,"lng":32.850286},{"lat":39.959664,"lng":32.848184},{"lat":39.960768,"lng":32.846954},{"lat":39.961228,"lng":32.846328},{"lat":39.961566,"lng":32.845869},{"lat":39.962472,"lng":32.844696},{"lat":39.963265,"lng":32.843721},{"lat":39.963397,"lng":32.84357},{"lat":39.963511,"lng":32.843414},{"lat":39.963628,"lng":32.843271},{"lat":39.963804,"lng":32.843048},{"lat":39.963898,"lng":32.842929},{"lat":39.965452,"lng":32.840996}],[{"lat":39.964951,"lng":32.841305},{"lat":39.964785,"lng":32.841514},{"lat":39.964555,"lng":32.841818},{"lat":39.963827,"lng":32.842688},{"lat":39.963622,"lng":32.842942},{"lat":39.963542,"lng":32.843037},{"lat":39.96343,"lng":32.843185},{"lat":39.963304,"lng":32.843335},{"lat":39.962502,"lng":32.844327},{"lat":39.961437,"lng":32.845665},{"lat":39.961162,"lng":32.84601},{"lat":39.961054,"lng":32.84613},{"lat":39.960679,"lng":32.846639},{"lat":39.960299,"lng":32.84711},{"lat":39.959572,"lng":32.848031},{"lat":39.959476,"lng":32.848146},{"lat":39.957918,"lng":32.85016},{"lat":39.957835,"lng":32.850267},{"lat":39.957696,"lng":32.850436},{"lat":39.957636,"lng":32.850509},{"lat":39.957244,"lng":32.850993},{"lat":39.95635,"lng":32.852096},{"lat":39.955658,"lng":32.852909},{"lat":39.954229,"lng":32.854682},{"lat":39.953853,"lng":32.855119},{"lat":39.953422,"lng":32.85567},{"lat":39.953096,"lng":32.856053},{"lat":39.952949,"lng":32.856252},{"lat":39.952406,"lng":32.856964},{"lat":39.952278,"lng":32.857091},{"lat":39.951554,"lng":32.857753},{"lat":39.951114,"lng":32.857934},{"lat":39.950962,"lng":32.857907},{"lat":39.950826,"lng":32.857881},{"lat":39.950556,"lng":32.857782},{"lat":39.94987,"lng":32.857458},{"lat":39.948744,"lng":32.856459},{"lat":39.948303,"lng":32.856178},{"lat":39.947866,"lng":32.855815},{"lat":39.947623,"lng":32.855625},{"lat":39.947283,"lng":32.855428},{"lat":39.946974,"lng":32.855249},{"lat":39.946209,"lng":32.854963},{"lat":39.945342,"lng":32.854679},{"lat":39.945094,"lng":32.85462},{"lat":39.944673,"lng":32.854562},{"lat":39.944124,"lng":32.854557},{"lat":39.943877,"lng":32.854564},{"lat":39.943572,"lng":32.854576},{"lat":39.943336,"lng":32.854503},{"lat":39.943041,"lng":32.854494},{"lat":39.942475,"lng":32.854465},{"lat":39.942371,"lng":32.85444},{"lat":39.942294,"lng":32.854403},{"lat":39.94201,"lng":32.854252},{"lat":39.941672,"lng":32.854101},{"lat":39.941495,"lng":32.854233},{"lat":39.940512,"lng":32.854229}],[{"lat":39.952418,"lng":32.85727},{"lat":39.952797,"lng":32.856825},{"lat":39.953102,"lng":32.856438},{"lat":39.953273,"lng":32.856239},{"lat":39.953713,"lng":32.855659},{"lat":39.954017,"lng":32.855296},{"lat":39.95498,"lng":32.854037},{"lat":39.955138,"lng":32.853829},{"lat":39.955317,"lng":32.853592},{"lat":39.955448,"lng":32.853421},{"lat":39.955638,"lng":32.853161},{"lat":39.955744,"lng":32.85303},{"lat":39.956395,"lng":32.852171},{"lat":39.957293,"lng":32.851087},{"lat":39.957668,"lng":32.850631},{"lat":39.957715,"lng":32.850579},{"lat":39.957854,"lng":32.850421},{"lat":39.957963,"lng":32.850286},{"lat":39.959664,"lng":32.848184},{"lat":39.960768,"lng":32.846954},{"lat":39.961228,"lng":32.846328},{"lat":39.961566,"lng":32.845869},{"lat":39.962472,"lng":32.844696},{"lat":39.963265,"lng":32.843721},{"lat":39.963397,"lng":32.84357},{"lat":39.963511,"lng":32.843414},{"lat":39.963628,"lng":32.843271},{"lat":39.963804,"lng":32.843048},{"lat":39.963898,"lng":32.842929},{"lat":39.965452,"lng":32.840996}],[{"lat":39.964951,"lng":32.841305},{"lat":39.964785,"lng":32.841514},{"lat":39.964555,"lng":32.841818},{"lat":39.963827,"lng":32.842688},{"lat":39.963622,"lng":32.842942},{"lat":39.963542,"lng":32.843037},{"lat":39.96343,"lng":32.843185},{"lat":39.963304,"lng":32.843335},{"lat":39.962502,"lng":32.844327},{"lat":39.961437,"lng":32.845665},{"lat":39.961162,"lng":32.84601},{"lat":39.961054,"lng":32.84613},{"lat":39.960679,"lng":32.846639},{"lat":39.960299,"lng":32.84711},{"lat":39.959572,"lng":32.848031},{"lat":39.959476,"lng":32.848146},{"lat":39.957918,"lng":32.85016},{"lat":39.957835,"lng":32.850267},{"lat":39.957696,"lng":32.850436},{"lat":39.957636,"lng":32.850509},{"lat":39.957244,"lng":32.850993},{"lat":39.95635,"lng":32.852096},{"lat":39.955658,"lng":32.852909},{"lat":39.954229,"lng":32.854682},{"lat":39.953422,"lng":32.85567},{"lat":39.953096,"lng":32.856053},{"lat":39.952949,"lng":32.856252},{"lat":39.952406,"lng":32.856964},{"lat":39.952278,"lng":32.857091},{"lat":39.951554,"ln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问题扩展

按用户提供的值seq过滤结果:

if (!isset($_GET['seq']) || !ctype_digit($_GET['seq'])){
    echo "Missing/Invalid SEQ value.";
} else {
    $array = json_decode($json, true);
    $result = [];
    $selected_seq = (int)$_GET['seq'];
    foreach ($array['data'] as $seq => $datas) {
        if ($seq === $selected_seq) {
            foreach ($datas['sentenceArray'] as $subitem) {
                if ($subitem['path']['type'] == 'bus' && isset($subitem['path']['nodes'])) {
                    $result[] = $subitem['path']['nodes'];
                }
            }
        }
    }
    echo json_encode($result);
}

关于php - 将数组添加到另一个数组(不是 array_push 或 array_merge)，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/50284062/

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php - PHP 是否有生成有效 PHP 表达式的打印函数？
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php - 文本区域 -> php -> mysql -> php
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php - php 中的安全首选项、php 函数来清理输入
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我有一个 html 页面，它使用 php 文件查询数据库，然后让用户登录，否则拒绝访问。我遇到的问题是它只是重定向到 php 文件的 url，并且从不对发生的事情提供反馈。这是我第一次使用 html、
php - onClick php PHP 函数然后重定向
我有一个页面充满了指向 pdf 的链接，我想跟踪哪些链接被单击。我以为我可以做如下的事情，但遇到了问题: query($sql); if($result){
php - 有没有办法从 PHP 代码加载的文件中解析 PHP？
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