跨语言数据传输：PHP调用Python并正确处理JSON的教程

# ... (部分Python脚本逻辑)
out = {'data': [{'article title', 'article description', 'timestamp', 'weburl'}], 'status': 200, 'answers': [1]}
print (out) # 直接打印Python字典对象

// ... (部分PHP脚本逻辑)
$command = escapeshellcmd('python3 feed.py '. $_GET['subject']);
$output = json_encode(shell_exec($command)); // 对Python的输出进行json_encode
header('Content-type: application/json');
echo $output;
// ...

myjs = JSON.parse(JSON.stringify(answer)); // 尝试处理PHP返回的'answer'

#!/usr/bin/python
import requests
import json 
import html
import sys

# ... (其他导入和初始化代码)

requestpost = requests.post('NewsSource')
response_data = requestpost.json()

out = {"data":[], "status": [], "answers":[0]} # 初始化out为字典

searchterm = sys.argv[1]

error = 0

if requestpost.status_code == 200:
    out["status"] = 200
    for news in response_data["news"]:
        try:
            currentNews = json.loads(news)
            if ((html.unescape(currentNews["title"]) != "Array" and html.unescape(currentNews["title"]).lower().find(searchterm.lower()) != -1) or (html.unescape(currentNews["description"]).lower().find(searchterm.lower()) != -1)):         
                # 将outnews从set改为list，以符合JSON规范
                outnews = [
                    html.unescape(currentNews["timestamp"]), 
                    html.unescape(currentNews["title"]), 
                    html.unescape(currentNews["description"]), 
                    html.unescape(currentNews["link"])
                ]
                out["data"].append(outnews)
                out["answers"][0] = out["answers"][0] +1
        except Exception as e: # 捕获更具体的异常
            error += 1
else:
    out["status"] = 404

# 使用json.dumps()将Python字典序列化为JSON字符串
print(json.dumps(out))

{"data": [["timestamp_val", "title_val", "description_val", "weburl_val"]], "status": 200, "answers": [1]}

<?php
    if (isset($_GET['times']) && $_GET['times'] == 0) {
        $command = escapeshellcmd('python3 feed.py ' . $_GET['subject']);

        // 设置Content-type头部，告知客户端响应是JSON格式
        header('Content-type: application/json');

        // 方案一（推荐）：直接将Python脚本的输出传递给客户端
        passthru($command);

        // 方案二（备选）：如果passthru()不适用，使用shell_exec()后echo
        // $output = shell_exec($command);
        // echo $output;
    }
?>

fetch('/your_php_script.php?times=0&subject=example')
    .then(response => {
        if (!response.ok) {
            throw new Error('Network response was not ok');
        }
        return response.json(); // 直接解析JSON响应
    })
    .then(data => {
        console.log('Received data:', data);
        // 'data'现在是一个JavaScript对象，可以直接访问其属性
        console.log('Status:', data.status);
        console.log('First article title:', data.data[0][1]);
    })
    .catch(error => {
        console.error('There was a problem with the fetch operation:', error);
    });

var xhr = new XMLHttpRequest();
xhr.open('GET', '/your_php_script.php?times=0&subject=example', true);
xhr.setRequestHeader('Accept', 'application/json'); // 可选，告知服务器期望JSON
xhr.onload = function() {
    if (xhr.status >= 200 && xhr.status < 300) {
        var data = JSON.parse(xhr.responseText); // 手动解析JSON字符串
        console.log('Received data:', data);
        console.log('Status:', data.status);
        console.log('First article title:', data.data[0][1]);
    } else {
        console.error('Request failed.  Returned status of ' + xhr.status);
    }
};
xhr.onerror = function() {
    console.error('Connection error');
};
xhr.send();