LaravelからWordPressに記事投稿する方法

https://(ご自身のドメイン)/wp-json/wp/v2/posts

WP_API_USERNAME=（WordPressのログインユーザー名）
WP_API_PASSWORD="（アプリケーションパスワード）"
WP_API_URL=https://（ご自身のドメイン）/wp-json/wp/v2/posts

<?php

return [

    // 省略

    'wordpress' => [
        'username' => env('WP_API_USERNAME'),
        'password' => env('WP_API_PASSWORD'),
        'url' => env('WP_API_URL'),
    ],

];

    'wordpress2' => [
        'username' => env('WP_API_USERNAME2'),
        'password' => env('WP_API_PASSWORD2'),
        'url' => env('WP_API_URL2'),
    ],

<?php

namespace App\Channels;

use Illuminate\Notifications\Notification;

class WordPressChannel
{
    /**
     * Send the given notification.
     *
     * @param  mixed  $notifiable
     * @param  \Illuminate\Notifications\Notification  $notification
     * @return void
     */
    public function send($notifiable, Notification $notification)
    {
        $result = $notification->toWordpress($notifiable);
        // $resultには、投稿された結果が入っています
        //dump($result);
    }
}

php artisan make:notification WordPressNotification

<?php

namespace App\Notifications;

use App\Channels\WordpressChannel;
use Illuminate\Bus\Queueable;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Notifications\Messages\MailMessage;
use Illuminate\Notifications\Notification;

class WordPressNotification extends Notification
{
    use Queueable;

    private $post_data;

    public function __construct($post_data)
    {
        $this->post_data = $post_data;
    }

    public function via($notifiable)
    {
        return [WordpressChannel::class];
    }

    public function toWordpress($notifiable) {

        $api_url = config('services.wordpress.url');
        $username = config('services.wordpress.username');
        $password = config('services.wordpress.password');

        $data = $this->post_data;

        $headers = [
            'Authorization: Basic ' . base64_encode($username .':'. $password),
            'Content-Type: application/json',
        ];

        //////////////////////////
        //CURL処理
        $ch = curl_init();

        curl_setopt($ch, CURLOPT_URL, $api_url );
        curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'POST');            // post
        curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));   // jsonデータを送信
        curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);             // リクエストにヘッダーを含める
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true );
        curl_setopt($ch, CURLOPT_HEADER, true );
        
        $response = curl_exec($ch);

        $header_size = curl_getinfo($ch, CURLINFO_HEADER_SIZE); 
        $header = substr($response, 0, $header_size);
        $body = substr($response, $header_size);

        $result = json_decode($body, true); 

        curl_close($ch);

        return $result;

    }

}

    $post_data = [
        'title' => ”タイトル",
        'content' => "記事の本文",
        'status' => "draft",
        'date' => date('Y-m-d H:i:s'),
        'slug' => "laravel-m-wp-test"
    ];

    //WPに送信
    \Notification::route('wordpress', null)->notify(new WordPressNotification($post_data));