PHP 簡易爬蟲

來源:互聯網
上載者:User

 

  function get_urls($url)

  {

  $url_array=array();

  $the_first_content=file_get_contents($url);

  $the_second_content=file_get_contents($url);

  $pattern1 = "/http:\/\/[a-zA-Z0-9\.\?\/\-\=\&\:\+\-\_\'\"]+/";

  $pattern2="/http:\/\/[a-zA-Z0-9\.]+/";

  preg_match_all($pattern2, $the_second_content, $matches2);

  preg_match_all($pattern1, $the_first_content, $matches1);

  $new_array1=array_unique($matches1[0]);

  $new_array2=array_unique($matches2[0]);

  $final_array=array_merge($new_array1,$new_array2);

  $final_array=array_unique($final_array);

  for($i=0;$i

  {

  echo $final_array[$i]."
";

  }

  }

  get_urls("http://www.baidu.com");



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