


How to send a POST request containing JSON data using PHP's cURL library?
Apr 01, 2025 pm 03:12 PM This article will demonstrate how to use PHP's cURL library to send POST requests containing JSON data and interact with external APIs. Suppose you need to send JSON data containing appid
, secret
and an
fields to the target server.
Solution:
Use the curl_setopt_array
function to set the cURL option to realize the POST request to send JSON data. The following code snippet shows the specific implementation:
<?php $curl = curl_init(); curl_setopt_array($curl, [ CURLOPT_URL => 'http://localhost/xxx', // Replace with your target URL CURLOPT_RETURNTRANSFER => true, // Return the result as the string CURLOPT_ENCODING => '', // Allow any encoding CURLOPT_MAXREDIRS => 10, // Maximum redirection CURLOPT_TIMEOUT => 0, // Timeout, 0 means infinite CURLOPT_FOLLOWLOCATION => true, // Allow redirection CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1, // HTTP version CURLOPT_CUSTOMREQUEST => 'POST', // The request method is POST CURLOPT_POSTFIELDS => json_encode([ // Use json_encode function to encode JSON data "appid" => "111", "secret" => "ddd111", "an" => "xxx" ]), CURLOPT_HTTPHEADER => [ 'Content-Type: application/json', // Specify the content type as JSON 'Cookie: lang=zh-cn; ssid=02bebb340032d3a9e4b15463dd7d0eaa' // Optional Cookie ], ]); $response = curl_exec($curl); // Execute the request curl_close($curl); // Close the cURL resource echo $response; // Output the response result?>
Code description:
-
CURLOPT_POSTFIELDS
uses thejson_encode
function to encode the PHP array into a JSON string to ensure the correct format of the data. -
CURLOPT_HTTPHEADER
setsContent-Type
toapplication/json
and tells the server that the request body is JSON format. Please replace the target URL, JSON data and cookie information according to the actual situation.
In order to more conveniently debug and generate cURL request codes in different languages, it is recommended to use tools such as Postman. Postman can generate code snippets in multiple languages, including PHP's cURL code, which facilitates developers to quickly build and test requests.
With Postman or similar tools, you can more effectively understand the meaning of parameters and set methods, so that API interactions are more efficient.
The above is the detailed content of How to send a POST request containing JSON data using PHP's cURL library?. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undress AI Tool
Undress images for free

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

There is no legal virtual currency platform in mainland China. 1. According to the notice issued by the People's Bank of China and other departments, all business activities related to virtual currency in the country are illegal; 2. Users should pay attention to the compliance and reliability of the platform, such as holding a mainstream national regulatory license, having a strong security technology and risk control system, an open and transparent operation history, a clear asset reserve certificate and a good market reputation; 3. The relationship between the user and the platform is between the service provider and the user, and based on the user agreement, it clarifies the rights and obligations of both parties, fee standards, risk warnings, account management and dispute resolution methods; 4. The platform mainly plays the role of a transaction matcher, asset custodian and information service provider, and does not assume investment responsibilities; 5. Be sure to read the user agreement carefully before using the platform to enhance yourself

Bitcoin halving affects the price of currency through four aspects: enhancing scarcity, pushing up production costs, stimulating market psychological expectations and changing supply and demand relationships; 1. Enhanced scarcity: halving reduces the supply of new currency and increases the value of scarcity; 2. Increased production costs: miners' income decreases, and higher coin prices need to maintain operation; 3. Market psychological expectations: Bull market expectations are formed before halving, attracting capital inflows; 4. Change in supply and demand relationship: When demand is stable or growing, supply and demand push up prices.

The latest price of Dogecoin can be queried in real time through a variety of mainstream APPs and platforms. It is recommended to use stable and fully functional APPs such as Binance, OKX, Huobi, etc., to support real-time price updates and transaction operations; mainstream platforms such as Binance, OKX, Huobi, Gate.io and Bitget also provide authoritative data portals, covering multiple transaction pairs and having professional analysis tools. It is recommended to obtain information through official and well-known platforms to ensure data accuracy and security.

PEPE coins are altcoins, which are non-mainstream cryptocurrencies. They are created based on existing blockchain technology and lack a deep technical foundation and a wide application ecosystem. 1. It relies on community driving forces to form a unique cultural label; 2. It has large price fluctuations and strong speculativeness, and is suitable for those with high risk preferences; 3. It lacks mature application scenarios and relies on market sentiment and social media. The prospects depend on community activity, team driving force and market recognition. Currently, it exists more as cultural symbols and speculative tools. Investment needs to be cautious and pay attention to risk control. It is recommended to rationally evaluate personal risk tolerance before operating.

With the digital asset industry booming, choosing a safe and reliable trading platform is crucial. This article has compiled the official website entrances and core features of the top ten mainstream cryptocurrency platforms in the world, aiming to help you quickly understand the leaders in the market and provide you with a clear navigation for exploring the digital world. It is recommended to collect the official websites of commonly used platforms to avoid entering through unverified links.

The latest BTC price can be checked in real time through multiple mainstream APPs and platforms. 1. The CoinMarketCap APP provides comprehensive market data; 2. The CoinGecko APP supports multiple transaction pairs of prices; 3. The Binance APP integrates market and trading. Platform: 1. The CoinMarketCap platform supports trend chart analysis; 2. The CoinGecko platform has a friendly interface; 3. The Binance trading platform has strong liquidity; 4. The OKX trading platform is compliant and safe; 5. The TradingView chart platform is suitable for technical analysis. It is recommended to obtain information through official and well-known platforms to ensure data accuracy and asset security.

The top ten cryptocurrency platform apps worth paying attention to in 2025 include Binance, Ouyi, Coinbase, Kraken, KuCoin, Bybit, Gate.io, MEXC, Bitget and Crypto.com. 1. Binance: deep liquidity, many trading products, low handling fees, suitable for from novices to professional traders; 2. Ouyi: Strong derivatives, integrated Web3 experience, suitable for experienced traders and Web3 users; 3. Coinbase: high compliance, simple operation, strong security, suitable for beginners; 4. Kraken: top security records, high customer service, suitable for long-term investors; 5. KuCoin: fast launch of new coins, high altcoins

Is Bitcoin’s breakthrough of $110,000 a bull market or a short-term boom? The answer depends on the game between long and short factors. 1. The continuous influx of institutional capital brings purchasing power and stability; 2. The macroeconomic environment promotes Bitcoin to become a hedging tool; 3. The mature financial products lower the threshold for participation; 4. The technological ecology is perfected to enhance practicality. But the risks are also significant: 1. Extreme market sentiment may trigger panic selling; 2. Historical high volatility indicates the possibility of a sharp pullback; 3. Uncertainty in regulatory policies poses a potential threat; 4. Early investors' profit settlement will form selling pressure. The future trend is determined by the competition between fundamentals and speculative forces. Participants need to pay close attention to the flow of funds, macro policies and regulatory trends to make rational judgments.
