Telegram inline bots answerInlineQuery Crawler

answerInlineQuery.php

<?php 
use Symfony\Component\DomCrawler\Crawler;
//.
//.
//.
if (isset($results->inline_query)) {
    $inline_query = $results->inline_query;
    $query_Id = $inline_query->id;
    $query_Text = $inline_query->query;

    if (isset($query_Text) && $query_Text !== "") {
        makeHTTPRequest($token, "answerInlineQuery",[
            "inline_query_id" => $query_Id,
            "results" => json_encode(queryDuckDuckGo($query_Text)),
            "cache_time" => 10,
        ]);

    } else {

        makeHTTPRequest($token, "answerInlineQuery",[
            "inline_query_id" => $query_Id,
            "results" => json_encode([
                [
                    "type" => "article",
                    "id" => "0",
                    "title" => "my github",
                    "input_message_content" => ["message_text" => ""I'm the author of this bot, please visit my github page for  https://github.com/ybagheri ",
                    "parse_mode" => "HTML"])
                    
                ],
            ]
        ]);


    }
}

function queryDuckDuckGo($query) {

    $content = file_get_contents('https://duckduckgo.com/html/?q=' . urlencode($query));
    if(!$content) return [[
        "type" => "article",
        "id" => "0",
        "title" => "Service unavailable",
        "message_text" => "Service unavailable",
    ]];

    $crawler = new Crawler();

    $crawler->addHtmlContent($content);

    $crawler->filterXPath('//span[contains(@id, "article-")]')->evaluate('substring-after(@id, "-")');


    $results = $crawler->filter(".links_main .result__title");
    foreach ($results as $result) {
        $titles[] = trim($result->textContent);
    }

    $results = $crawler->filter(".links_main .result__snippet");
    foreach ($results as $result) {
        $snippets[] = trim($result->textContent);
    }

    $results = $crawler->filter(".links_main .result__url");
    foreach ($results as $result) {
        $urls[] = trim($result->textContent);
    }

    foreach (range(0, count($titles) - 1) as $i) {
        $collection[] = [
            "type" => "article",
            "id" => "$i",
            "title" => "$titles[$i]",
            "message_text" => "$titles[$i]\n$snippets[$i]\n$urls[$i]",
        ];
    }

    return $collection;
}

function makeHTTPRequest($token, $method, $datas = [])
{
    $url = "https://api.telegram.org/bot" . $token . "/" . $method;
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($datas));
    $res = curl_exec($ch);
    if (curl_error($ch)) {
        var_dump(curl_error($ch));
    } else {
        return json_decode($res);
    }
}