php解决DOM乱码的方法示例代码-tutorial php-php.cn

php解决DOM乱码的方法示例代码

高洛峰

Lepaskan： 2023-03-03 13:28:01

asal

1356 orang telah melayarinya

前言

DOM是php比较新的xml和html处理类，可以像javascript那样方便的操作DOM树，网上更多的是介绍它处理XML的情况，今天这篇文章就介绍下php解决DOM乱码的方法，下面话不多说，直接看下面的解决方法。

解决方法如下

/**
 * 请求url页面信息
 * @param str $url
 * @return str mixed|boolean
 */
function curl_get($url) {
  $curl = curl_init();
  curl_setopt($curl, CURLOPT_URL, $url);
  curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
  //302跳转
  curl_setopt($curl, CURLOPT_FOLLOWLOCATION, 1);
  curl_setopt($curl, CURLOPT_USERAGENT, &#39;Mozilla/5.0 (Windows NT 6.1; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0&#39;);
  curl_setopt($curl, CURLOPT_REFERER, $url);
  $data = curl_exec($curl);
  $code = curl_getinfo($curl,CURLINFO_HTTP_CODE); //输出请求状态码
  curl_close($curl);
  if(200 == $code) {
    //解决乱码
    if (preg_match(&#39;#<meta[^>]*charset="?gb2312"[^>]*>#&#39;, $data)) {
      $data = iconv("gb2312","utf-8//IGNORE",$data);
      $data = preg_replace(&#39;#<meta[^>]*charset="?gb2312"[^>]*>#is&#39;, &#39;<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">&#39;, $data);
    }
 
    if (!preg_match(&#39;#<meta charset="utf-8"[^>]*>#is&#39;, $data)) {
      $data = str_replace(&#39;<head>&#39;, &#39;<head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8">&#39;, $data);
    }
 
    if (preg_match(&#39;#<meta charset="utf-8"[^>]*>#is&#39;, $data)) {
      $data = preg_replace(&#39;#<meta charset="utf-8"[^>]*>#is&#39;, &#39;<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">&#39;, $data);
    }
 
    return $data;
  } else {
    return false;
  }
 
}

Salin selepas log masuk

/**
 * 获取 DOMDocument 对象
 * @param str $url
 * @return boolean|DOM
 */
function getDom($url) {
  $html_content = curl_get($url);
  if(empty($html_content)) {
    //saveLog($url, &#39;请求失败&#39;);
    return false;
  }
  $dom = new DOMDocument(&#39;1.0&#39;, &#39;utf-8&#39;);
  libxml_use_internal_errors(true);
  $dom->loadHTML($html_content);
  return $dom;
}

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$html_content = mb_convert_encoding($html_content, &#39;UTF-8&#39;, &#39;gb2312&#39;);

Salin selepas log masuk