A simple post insert using WP REST API and PHP over basic authentication

rest_insert_post.php

<?php

///////////////////////////////////////////////////////////////////////////////////
//                                                                               //
// This is using a sample local WordPress Install and is not production safe     //
// It uses the  REST and Basic Auth plugins                                      //
//                                                                               //
///////////////////////////////////////////////////////////////////////////////////


// setup user name and password
$username = 'admin';
$password = 'password';

// the standard end point for posts in an initialised Curl
$process = curl_init('http://blogimport.dev/wp-json/wp/v2/posts');

// create an array of data to use, this is basic - see other examples for more complex inserts
$data = array('slug' => 'rest_insert' , 'title' => 'REST API insert' , 'content' => 'The content of our stuff', 'excerpt' => 'smaller' );
$data_string = json_encode($data);

// create the options starting with basic authentication
curl_setopt($process, CURLOPT_USERPWD, $username . ":" . $password);
curl_setopt($process, CURLOPT_TIMEOUT, 30);
curl_setopt($process, CURLOPT_POST, 1);
// make sure we are POSTing
curl_setopt($process, CURLOPT_CUSTOMREQUEST, "POST");
// this is the data to insert to create the post
curl_setopt($process, CURLOPT_POSTFIELDS, $data_string);
// allow us to use the returned data from the request
curl_setopt($process, CURLOPT_RETURNTRANSFER, TRUE);
// we are sending json
curl_setopt($process, CURLOPT_HTTPHEADER, array(                                                                          
    'Content-Type: application/json',                                                                                
    'Content-Length: ' . strlen($data_string))                                                                       
);

// process the request
$return = curl_exec($process);

curl_close($process);

// This buit is to show you on the screen what the data looks like returned and then decoded for PHP use
echo '<h2>Results</h2>';

print_r($return);

echo '<h2>Decoded</h2>';

$result = json_decode($return, true);

print_r($result);