Axios POST PHP

Axios is a popular Javascript library used for making HTTP requests from the browser or Node.js. It provides a simple and consistent API for performing asynchronous HTTP requests with Promise-based responses.

In this guide, we will focus on using Axios to perform a HTTP POST request to a PHP server.

Installing Axios

You can install Axios using npm or yarn:

npm install axios

or

yarn add axios

Once installed, you can import the library into your Javascript code:

import axios from 'axios'

Performing a POST request

To perform a HTTP POST request with Axios, we can use the axios.post() method. This method takes two arguments:

1. The URL to which the request should be sent.
2. An optional object containing any data to be sent in the request body.

Here is an example of how to use axios.post() to submit a form containing the user's name and email address:

const data = {
  name: 'John Doe',
  email: 'john.doe@example.com',
};

axios.post('/submit-form.php', data)
  .then((response) => {
    console.log(response.data);
  })
  .catch((error) => {
    console.error(error);
  });

In the above code, we create a data object which contains the user's name and email address. We then use axios.post() to send this data to the server using the URL /submit-form.php. Once the request has been sent, we attach two callbacks to the Promise returned by axios.post(). The first callback is executed if the request is successful and logs the response data to the console. The second callback is executed if an error occurs during the request and logs the error to the console.

Note that the server-side script /submit-form.php needs to be set up to handle the POST request and return a response.

Handling the POST request in PHP

To handle the POST request in PHP, we can use the $_POST superglobal to access the data sent in the request body.

Here is an example of how a simple submit-form.php script might handle the request:

<?php

if ($_SERVER['REQUEST_METHOD'] === 'POST') {
  $name = $_POST['name'];
  $email = $_POST['email'];

  // Do something with the name and email data
  // ...

  echo 'Successfully submitted form!';
} else {
  header('HTTP/1.1 405 Method Not Allowed');
  header('Allow: POST');
  echo 'Invalid request method';
}

In the above code, we first check that the request method is POST using $_SERVER['REQUEST_METHOD']. We then use $_POST to access the data sent in the request body and store it in the variables $name and $email. We can then do something with this data, such as storing it in a database or sending an email.

Finally, we echo a success message back to the client. If the request method is not POST, we return a 405 Method Not Allowed status code and a message indicating that only POST requests are allowed.

Conclusion

In this guide, we have shown you how to use Axios to perform a HTTP POST request to a PHP server. Using Axios for HTTP requests is a popular approach due to its simple API and Promise-based responses. By combining Axios with PHP on the server-side, you can build web applications that can perform dynamic operations while maintaining a high level of security.