PHP api 调用，但是格式很奇怪

Question

怎么办？因为如果我用 json 解析，我只会得到“xx.xx”值

<?php
  header('Access-Control-Allow-Origin: *');
  $url = "https://www.henrikhjelm.se/api/getdata.php?lan=kronobergs-lan";
  $json = file_get_contents($url);
  $json_data = json_decode($json, true);
  
  foreach ($json_data as $value) {
    echo "Value: $value <br>";
  }

?>

这是我使用的代码，我只从 api 中获取“”中的值。但我需要第一个值和“”内的值。不知道怎么做。

var_dump($json)

string(8728) "{"kronobergslan_Ingo_VaxjoSmedjegatan_28__Morners_vag__biodiesel": "34.23","kronobergslan_OKQ8_VaxjoStora_Vagen_6__biodiesel": "10.04","kronobergslan_OKQ8_VaxjoArabygatan_53__etanol": "19.24","kronobergslan_Tanka_MarkarydHassleholmsvagen_2__etanol": "19.24","kronobergslan_Preem_VaxjoOstregardsgatan_51__etanol": "19.24","kronobergslan_OKQ8_MarkarydGlasbruksvagen_15_Stromsnasbruk__etanol": "19.24","kronobergslan_Tanka_AlvestaBladingevagen_20__etanol": "19.24","kronobergslan_OKQ8_LjungbyHelsingborgsvagen__etanol": "19.24","kronobergslan_Tanka_LjungbyNyponvagen_7__etanol": "19.24","kronobergslan_OKQ8_LesseboStorgatan_60__etanol": "19.24","kronobergslan_St1_VaxjoVingavagen_1__etanol": "19.14","kronobergslan_St1_VaxjoMorners_Vag_2__etanol": "19.14","kronobergslan_Ingo_VaxjoSoderleden_2__etanol": "19.14","kronobergslan_Ingo_LjungbyHarabergsgatan__etanol": "19.14","kronobergslan_St1_LjungbyMarta_Ljungbergsvagen_56__etanol": "19.14","kronobergslan_St1_MarkarydDrottninggatan_50__etanol": "19.14","kronobergslan_Ingo_VaxjoSmedjegatan_28__Morners_vag__etanol": "34.23","kronobergslan_Preem_TingsrydLokgatan__etanol": "19.41","kronobergslan_Preem_MarkarydUlvarydsvag__etanol": "19.39","kronobergslan_Circle_K_VaxjoSodra_Vallviksvagen_352_51_Vaxjo__etanol": "19.39","kronobergslan_Circle_K_LjungbyRingvagen_1__etanol": "19.39","kronobergslan_Preem_UppvidingeJarnvagsgatan_Aseda__etanol": "19.39","kronobergslan_Preem_VaxjoVarnamovagen_Lammhult__etanol": "19.39","kronobergslan_Circle_K_UppvidingeVaxjovagen_Lenhovda__etanol": "19.39","kronobergslan_Preem_VaxjoSandviksvagen__etanol": "19.39","kronobergslan_Circle_K_VaxjoJonkopingsvagen_14_Lammhult__etanol": "19.39","kronobergslan_OKQ8_VaxjoSambandsvagen_2__etanol": "19.39","kronobergslan_Preem_LjungbyLanggatan_2__etanol": "19.39","kronobergslan_Circle_K_LjungbyLagan__etanol": "19.39","kronobergslan_OKQ8_VaxjoNorremarksvagen_2__etanol": "19.39","kronobergslan_Circle_K_VaxjoHejaregatan_17__etanol": "19.39","kronobergslan_Circle_K_VaxjoEvedalsvagen__etanol": "19.39","kronobergslan_OKQ8_UppvidingeAspvagen_9_Alstermo__etanol": "19.39","kronobergslan_Preem_AlmhultS_Esplanaden__etanol": "19.24","kronobergslan_OKQ8_AlvestaFabriksgatan_3__etanol": "19.24","kronobergslan_Tanka_AlmhultDanska_Vagen_4__etanol": "19.24","kronobergslan_OKQ8_Almhultalmhult_ringvagen_10__etanol": "19.24","kronobergslan_dinX_TingsrydSodra_vagen_19_urshult__etanol": "19.24","kronobergslan_OKQ8_AlmhultSodra_Ringvagen_10__etanol": "19.24","kronobergslan_Tanka_VaxjoLjungadalsgatan_1__etanol": "19.24","kronobergslan_Preem_LesseboStorgatan_56a__etanol": "19.24","kronobergslan_Preem_VaxjoRadjursvagen__etanol": "19.24","kronobergslan_OKQ8_VaxjoStora_Vagen_6__etanol": "19.24","kronobergslan_Tanka_TingsrydStorgatan_113__etanol": "19.24","kronobergslan_Preem_VaxjoHammerdalsvagen_3__etanol": "19.24","kronobergslan_Tanka_AlvestaBladingevagen_20__diesel": "24.57","kronobergslan_OKQ8_LjungbyHelsingborgsvagen__diesel": "24.57","kronobergslan_Tanka_LjungbyNyponvagen_7__diesel": "24.57","kronobergslan_OKQ8_LesseboStorgatan_60__diesel": "24.57","kronobergslan_Ingo_VaxjoSoderleden_2__diesel": "24.53","kronobergslan_St1_VaxjoVingavagen_1__diesel": "24.47","kronobergslan_St1_VaxjoMorners_Vag_2__diesel": "24.47","kronobergslan_Ingo_LjungbyHarabergsgatan__diesel": "24.47","kronobergslan_St1_LjungbyMarta_Ljungbergsvagen_56__diesel": "24.47","kronobergslan_St1_MarkarydDrottninggatan_50__diesel": "24.47","kronobergslan_dinX_TingsrydSodra_vagen_19_urshult__diesel": "24.46","kronobergslan_OKQ8_VaxjoStora_Vagen_6__diesel": "24.45","kronobergslan_Preem_VaxjoOstregardsgatan_51__diesel": "24.13","kronobergslan_Smart_Energy_LesseboSkruv_Lagervagen_1__diesel": "23.83","kronobergslan_Ingo_VaxjoSmedjegatan_28__Morners_vag__diesel": "100.00","kronobergslan_Tanka_VaxjoLjungadalsgatan_1__diesel": "52.39","kronobergslan_Circle_K_VaxjoSodra_Vallviksvagen_352_51_Vaxjo__diesel": "29.12",

var_dump($json_data)

array(141) { ["kronobergslan_Ingo_VaxjoSmedjegatan_28__Morners_vag__biodiesel"]=> string(5) "34.23" ["kronobergslan_OKQ8_VaxjoStora_Vagen_6__biodiesel"]=> string(5) "10.04" ["kronobergslan_OKQ8_VaxjoArabygatan_53__etanol"]=> string(5) "19.24" ["kronobergslan_Tanka_MarkarydHassleholmsvagen_2__etanol"]=> string(5) "19.24" ["kronobergslan_Preem_VaxjoOstregardsgatan_51__etanol"]=> string(5) "19.24" ["kronobergslan_OKQ8_MarkarydGlasbruksvagen_15_Stromsnasbruk__etanol"]=> string(5) "19.24" ["kronobergslan_Tanka_AlvestaBladingevagen_20__etanol"]=> string(5) "19.24" ["kronobergslan_OKQ8_LjungbyHelsingborgsvagen__etanol"]=> string(5) "19.24"

我正在尝试构建一个 table，名称为“kronobergslan_Ingo_VaxjoSmedjegatan_28__Morners_vag__biodiesel”，值为“34.23”

Answer 1

欢迎来到 Stack Overflow 社区。首先，您只循环遍历值。您需要稍微修改 foreach 循环以包含键。以下是您的操作方法：

<?php

$url = "https://www.henrikhjelm.se/api/getdata.php?lan=kronobergs-lan";
$json = file_get_contents($url);
$entries = json_decode($json, true);

foreach ($entries as $key => $value) {
    echo("key: $key<br>");
    echo("value: $value<br>");
    echo("<br>");
}

输出如下：

key: kronobergslan_Ingo_VaxjoSmedjegatan_28__Morners_vag__biodiesel
value: 34.23

key: kronobergslan_OKQ8_VaxjoStora_Vagen_6__biodiesel
value: 10.04

key: kronobergslan_OKQ8_VaxjoArabygatan_53__etanol
value: 19.24

希望这是我想要的结果。如果您还有任何问题，请告诉我。

PHP api 调用，但是格式很奇怪

PHP api call, but format is strange

php

api

json