错误的输出 - array(1) { [ "description" ]=> string(0) " " }

Question

我怎样才能得到这个脚本的良好输出：源 JSON：https://ufile.io/sn0hu

我需要将值放入数组中，并在下一步中获取变量。值为结果>数据>制表符>unified_content>项(如果标题 = 标题且文本 = 说明，则键入>文本(

脚本：

function getContent($data) {
    $tabs = $data->result->data->tab;
    foreach($tabs as $tab){
        $content = [];
        if(isset($tab->unified_content->item)) {
            foreach($tab->unified_content->item as $item) {
                if($item->type->name == 'header') {
                    $arr = [];
                    $arr['title'] = $item->text;
                } else {
                    $arr['description'] = $item->text;
                    $content[] = $arr;
                }                   
            }
            return $content;
        }   
    }
}
$test = getContent($data);
foreach ($test as $lol) {
    var_dump($lol);
}

现在输出这个： array(1( { ["description"]=> string(0( " }

Answer 1

您需要

在foreach循环之前初始化$content，并在之后返回它。否则，您只会从存在unified_content->item的第一个选项卡中返回内容。该选项卡仅包含一个项目，没有标题和空文本。

    "item": [{
        "id": 17229,
        "text": "",
        "align": "l",
        "type": {
            "id": 3,
            "name": "image"
        },
        "width": "l",
        "shape": "s",
        "swajp": 0,
        "icon": 273,
        "margin": 1,
        "image": [{
            "id": 10482,
            "src": "image.php?id=18432&app_id=5786&key=a1bd33754a582bc1094e5f1b170adbb4747b7bdb",
            "title": "V nedu011bli 12.11. od 14:00 hrajeme v Brau0161kovu011b",
            "width": 1920,
            "height": 1345
        }, {
            "id": 10480,
            "src": "image.php?id=18430&app_id=5786&key=62d75ca8ea4c16fdd6a4bec8c48848f692b843bf",
            "title": "Domu00e1cu00ed prohra na penalty s Jedomu011blicemi 2:3 (1:2) Pen: 2:4",
            "width": 1920,
            "height": 1218
        }, {
            "id": 10483,
            "src": "image.php?id=18433&app_id=5786&key=1e1479dcf8de55f57e29e1a16f428f4414c76032",
            "title": "Unhou0161u0165 spadla na 11. mu00edsto v tabulce",
            "width": 1920,
            "height": 1280
        }, {
            "id": 49465,
            "src": "image.php?id=90502&app_id=5786&key=3103a185854b771cdad784950d343bb3e143bec6",
            "title": "u00daspu011bu0161nu00fd fotbalovu00fd kemp",
            "width": 1000,
            "height": 750
        }]
    }]

您还应该在内部循环之前初始化$arr，而不是在if中初始化，以防没有header对象。

function getContent($data) {
    $tabs = $data->result->data->tab;
    $content = [];
    foreach($tabs as $tab){
        if(isset($tab->unified_content->item)) {
            $arr = [];
            foreach($tab->unified_content->item as $item) {
                if($item->type->name == 'header') {
                    $arr['title'] = $item->text;
                } else {
                    $arr['description'] = $item->text;
                    $content[] = $arr;
                }                   
            }
        }   
    }
    return $content;
}

Answer 2

下次请明确说明您正在寻找什么(什么是"好的输出"？

使用 json_decode($json_file ，true(。即：

<?php
$json_file = file_get_contents("testing.json");
$json_decode = json_decode($json_file, true); //Sets it as an array
print_r($json_decode['result']['status']); //Will print out "done" in this case
?>

同样，这可能不是您正在寻找的答案，因为不清楚您在 OP 中寻找的内容。