PHP 怎么解析远程URL 传过来json ，在前端显示出来

Posted 2023-04-22

json 数据 ：
"ErrorCode":0,"Success":true,"ErrMessage":"","HasData":true,"Records":["Time":"2014-08-19 07:47:10","Location":"广东省河源市G25黄田至义合高速路段","Reason":"驾驶中型以上载客载货汽车、危险物品运输车辆以外的其他机动车行驶超过规定时速10%未达20%的","count":"150","status":"0","department":"河源市公安局交通警察支队高速公路二大队","Degree":"3","Code":"1352A","Archive":"4416307900262638","Telephone":null,"Excutelocation":null,"Excutedepartment":null,"Category":"","Latefine":"0","Punishmentaccording":null,"Illegalentry":null,"Locationid":4416,"LocationName":"广东河源","DataSourceID":9992,"RecordType":"实时数据","Poundage":"25","CanProcess":"1","UniqueCode":"fbbe4d88558cff1f25a8770a42cd4e3e","SecondaryUniqueCode":"1993287","DegreePoundage":"0","Other":"","CanprocessMsg":"","CooperPoundge":"25","ActivePoundge":"-1","CanUsePackage":"0"],"ResultType":"实时数据","LastSearchTime":"","PackageName":"","RemainCount":0,"Other":""

我想 在php 中 接收 这个 json 数据 并在前端显示出来。

比如：
$jsonData = '"ErrorCode":0,"Success":true,"ErrMessage":"","HasData":true,"Records":["Time":"2014-08-19 07:47:10","Location":"广东省河源市G25黄田至义合高速路段","Reason":"驾驶中型以上载客载货汽车、危险物品运输车辆以外的其他机动车行驶超过规定时速10%未达20%的","count":"150","status":"0","department":"河源市公安局交通警察支队高速公路二大队","Degree":"3","Code":"1352A","Archive":"4416307900262638","Telephone":null,"Excutelocation":null,"Excutedepartment":null,"Category":"","Latefine":"0","Punishmentaccording":null,"Illegalentry":null,"Locationid":4416,"LocationName":"广东河源","DataSourceID":9992,"RecordType":"实时数据","Poundage":"25","CanProcess":"1","UniqueCode":"fbbe4d88558cff1f25a8770a42cd4e3e","SecondaryUniqueCode":"1993287","DegreePoundage":"0","Other":"","CanprocessMsg":"","CooperPoundge":"25","ActivePoundge":"-1","CanUsePackage":"0"],"ResultType":"实时数据","LastSearchTime":"","PackageName":"","RemainCount":0,"Other":""
';
$data = json_decode($jsonData,TRUE);
var_dump($data);
这个$data 是一个数组，输出数组就简单了（foreach）追问

提示 NULL 什么意思哦 ？

追答

你确定？我就能打印出来
<?php
$jsonData = '"ErrorCode":0,"Success":true,"ErrMessage":"","HasData":true,"Records":["Time":"2014-08-19 07:47:10","Location":"广东省河源市G25黄田至义合高速路段","Reason":"驾驶中型以上载客载货汽车、危险物品运输车辆以外的其他机动车行驶超过规定时速10%未达20%的","count":"150","status":"0","department":"河源市公安局交通警察支队高速公路二大队","Degree":"3","Code":"1352A","Archive":"4416307900262638","Telephone":null,"Excutelocation":null,"Excutedepartment":null,"Category":"","Latefine":"0","Punishmentaccording":null,"Illegalentry":null,"Locationid":4416,"LocationName":"广东河源","DataSourceID":9992,"RecordType":"实时数据","Poundage":"25","CanProcess":"1","UniqueCode":"fbbe4d88558cff1f25a8770a42cd4e3e","SecondaryUniqueCode":"1993287","DegreePoundage":"0","Other":"","CanprocessMsg":"","CooperPoundge":"25","ActivePoundge":"-1","CanUsePackage":"0"],"ResultType":"实时数据","LastSearchTime":"","PackageName":"","RemainCount":0,"Other":""';
$data = json_decode($jsonData,TRUE);
var_dump($data);

追问

我在试试，你的扣扣什么哦？

追答

这个没必要加qq了，上面的代码我试过的，正常运行的

参考技术A boolean tag = true; 参考技术B 楼主研究一下json_decode json_encode追问

有没有案例参考下！

写代码中遇到的问题（php接收不到传过来的json数据，php使用utf8的用法）

　　　　今天写代码用python处理完数据，传给php服务器后，发现接收不到数据，因为是跨域，所以加了消息头：header(‘Access-Control-Allow-Origin:*‘);但是并没有什么卵用，后来不停地百度，东拼西凑终于找到了解决方案。

方案如下：

　　　　1。传过来的数据要加header头：headers = {‘Content-Type‘: ‘application/json‘}

　　　　2。PHP接收数据时要用：$GLOBALS[‘HTTP_RAW_POST_DATA‘]。

　　　　　　原因如下： 　$_POST：通过 HTTP POST 方法传递的变量组成的数组。是自动全局变量。 　PHP默认只识别application/x-www.form-urlencoded标准的数据类型，也就是可以正常接受的post数据。

　　　　　　　　　　　　如text/xml 或者 soap 或者 application/octet-stream 之类的内容无法解析，如果用$_POST数组来接收就会失败！故保留原型，交给$GLOBALS[‘HTTP_RAW_POST_DATA‘] 来接收。

 

php接收到数据以后，上传mysql后发现中文乱码，在PHP中加入header("Content-type: text/html; charset=utf-8");mysql中设置字符集utf-8也无效，后来发现是pdo没有设置中文编码，加上以后，遂成功。

另附 

　　utf-8的使用方法：

 “UTF-8”是标准写法，php在Windows下边英文不区分大小写，所以也可以写成“utf-8”。“UTF-8”也可以把中间的“-”省略，写成“UTF8”。一般程序都能识别，但也有例外（如下文），为了严格一点，最好用标准的大写“UTF-8”。

在数据库中只能使用“utf8”(MySQL) 在mysql的命令模式中只能使用“utf8”，不能使用“utf-8”，也就是说在PHP程序中只能使用“set names utf8(不加小横杠)”，如果你加了“-”此行命令将不会生效，但是在php中header时却要加上“-”，因为IE不认识没杠的“utf8”，原因见下文。

 

PHP中的header：

 <?php header(‘Content-Type: text/html; charset=UTF-8‘); ?> //奇怪了：Content-Tyep用冒号，Chatset却是等号。
静态文件使用：
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
总结：【只有在MySQL中可以使用“utf-8”的别名“utf8”，但是在其他地方一律使用大写“UTF-8”。】