What is PHP?
What is JSON?
What is HTTP POST?
The HTTP POST request method is used to send data to the server, such as web form data or PDF files, or to create or update resources when communicating over the REST API protocol. The HTTP POST request can be with or without a body. The body of the POST request message carries the data sent to the server. The Content-Type header specifies the data type present within the POST request's body, and the data length is indicated using the HTTP Content-Length header.
What is PHP Curl Library?
The PHP Curl library is a convenient and flexible way to make HTTP requests in PHP. The PHP Curl library provides web application developers with an easy and secure way to interact with external servers and APIs.
The PHP Curl Library allows you to interact with servers through various types of protocols, including HTTP, HTTPS, FTP, and others. The Libcurl library supports HTTPS certificates, HTTP GET, POST, PUT, PATCH, and other HTTP methods, FTP file upload (FTP file upload can also be done with PHP FTP extension), proxy, cookies, user authentication, and HTML forms based upload.
PHP Curl library is an extension of PHP. To use PHP Curl features, you need to install libcurl 7.10.5 or later and compile PHP with Curl support. The behavior of the PHP Curl functions is affected by the curl.cainfo setting in the php.ini file.
How to make POST requests using the PHP Curl Library?
To make POST requests using the Curl library, follow these steps: initialize a Curl session with curl_init(), set additional parameters with curl_setopt(), start the session using curl_exec(), close the session with curl_close(), and output the returned string.
How to send JSON using PHP Curl Library?
To send JSON data using the PHP Curl Library, you need to follow these steps:
- Create the object or array of data you want to send;
- Convert it to JSON format using the json_encode() function;
- Initialize Curl with the curl_init() function;
- Set Curl options including URL, request type, and JSON data;
- Execute a Curl request using the curl_exec() function;
- Close the Curl session with the curl_close() function.