PHP method to obtain all connections of a web page (with demo source code download), demo source code download_PHP tutorial

How PHP obtains all connections to a web page (with demo source code download), demo source code download

The example in this article describes how PHP obtains all connections to a web page. Share it with everyone for your reference, the details are as follows:

function getHtml($url, $charset='utf-8')
{
  $curl = curl_init();
  //curl_setopt($curl, CURLOPT_HTTPHEADER, array('X-FORWARDED-FOR:192.168.168.1', 'CLIENT-IP:192.168.168.1'));//IP
  curl_setopt($curl, CURLOPT_URL, $url);
  curl_setopt($curl, CURLOPT_REFERER, "");  //来路
  $user_agent = isset($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] : 'Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.31 (KHTML, like Gecko) Chrome/26.0.1410.43 Safari/537.31';
  curl_setopt($curl, CURLOPT_USERAGENT, $user_agent);
  // 只需返回HTTP header
  // curl_setopt($curl, CURLOPT_HEADER, 1);
  // 页面内容我们并不需要
  // curl_setopt($curl, CURLOPT_NOBODY, 1);
  // 返回结果，而不是输出它
  curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
  $html = curl_exec($curl);
  //$info = curl_getinfo($curl);
  //echo var_dump($info);
  if ($html === false) {
    //echo "cURL Error: " . curl_error($ch);
    return '';
  }
  curl_close($curl);
  if ($charset != 'utf-8')
  {
    $html = iconv($charset, "UTF-8", $html);
  }
  return $html;
}
header("Content-type: text/html; charset=utf-8");
include('simple_html_dom.php');
// 要打开 extension=php_mbstring.dll
//$url = 'http://www.baidu.com/s?wd=kaka';
$url = 'http://www.163.com/';
$str_html = getHtml($url, 'gbk');
$html = str_get_html($str_html);
$links = $html->find('a');
foreach($links as $link)
{
  $txt = trim($link->plaintext);
  echo $link->href . '[' . $txt . ']<br>';
}
$html = null;

Click here to download the complete example code from this website.

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I hope this article will be helpful to everyone in PHP programming.

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http://www.bkjia.com/PHPjc/1117060.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/1117060.htmlTechArticleHow to get all the connections of the webpage in PHP (with demo source code download), demo source code download This article describes the example of PHP getting the webpage All methods of connection. Share it with everyone for your reference, the details are as follows...