今天覆習php的時候看到dom這個擴充套件，想了想在php裡面貌似最大的用途就只是xpath

$content = file_get_contents("https://read.qidian.com/chapter/bLkfqG4_EUSoUTngny7bXQ2/lUKaD4PkCBRp4rPq4Fd4KQ2");
$doc = new DOMDocument('1.1', 'utf-8');
try {
    $doc->loadHTML($content);
} catch (Exception $e) {
    $e->getMessage();
}

$xpath
 
 = new DOMXPath($doc);
$elements = $xpath->query("//div[@class='read-content j_readContent']");
foreach ($elements as $element) {
    $nodes = $element->childNodes;
    foreach ($nodes as $node) {
        echo $node->nodeValue . "\n";
    }
}

就到這了等過段時間工作穩定可能會詳細的出一篇文章介紹php爬蟲的