ドラゴンクエストタクトの新着ニュースをWebhookを通じてDiscordに通知する。

doragon_quest_tact_news_notify.php

<?php
function sendDiscordWebhook($message)
{
    $url = "<DISCORD WEBHOOK URL>";
    
    $data = [
        "content" => $message
    ];
    $header = array(
        "Content-Type: application/json",
        "Content-Length: ".strlen(json_encode($data)),
        "User-Agent: DiscordBot (http://example.com, v0.0.1)"
    );
    $context = array(
        "http" => array(
            "method"  => "POST",
            "header"  => implode("\r\n", $header),
            "content" => json_encode($data)
        )
    );
    $context = stream_context_create($context);
    file_get_contents($url, false, $context);
}

if (file_exists(__DIR__ . "/tact_readed.json")) {
    $readed = json_decode(file_get_contents(__DIR__ . "/tact_readed.json"), true);
} else {
    $readed = [];
}

$html = file_get_contents("https://cache.sqex-bridge.jp/guest/information?game_id=238&list=no", false, stream_context_create([
    "http" => [
        "header" => "User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Firefox/78.0"
    ]
]));
preg_match_all("/<a href=\"\/guest\/information\/([0-9]+)\">(.+?)<\/a>/", $html, $m, PREG_SET_ORDER);

foreach ($m as $one) {
    $id = $one[1];
    $title = $one[2];
    
    if (in_array($id, $sended)) {
        continue;
    }
    
    $url = "https://cache.sqex-bridge.jp/guest/information/" . $id;
    $article = file_get_contents($url, false, stream_context_create($context));
    preg_match("/<div class=\"outline\">([\s\S]+)<\/div>[\s\S]+?<p class=\"page-transitions\">/", $article, $m_article);
    
    $content = strip_tags($m_article[1]);
    $content = trim($content);
    do {
        $content = preg_replace("/^[ 　\t]+/mu", "", $content, -1, $count);
    } while ($count != 0);
    do {
        $content = preg_replace("/[ 　\t]+$/mu", "", $content, -1, $count);
    } while ($count != 0);

    $content = str_replace("\r\n", "\n", $content);
    do {
        $content = str_replace("\n\n\n", "\n\n", $content, $count);
    } while ($count != 0);

    echo "$id - $title\n";
    echo $content . "\n";

    sendDiscordWebhook("**$title** - $id```$content```");

    $sended[] = $id;
}
file_put_contents(__DIR__ . "/tact_readed.json", json_encode($sended));