seatop.com.cn

<?php
    class spider {
  private $_url = "";
  private $_sites = "";
  function spider($url) {
    $this->_url = $url;
  }
  function start() {
    
    if(file_get_contents($this->_url)==false)
      {echo "error";echo '<a href="index.php">back</a>';die();}else{
    $content = file_get_contents($this->_url);
    $this->_sites["links"] = $this->getLinks($content);}
  }
  function getLinks($content){
        $pat = '/<a(.*?)href="(.*?)"(.*?)><img(.*?)src="(.*?)"(.*?)><\/a>/s';
    preg_match_all($pat, $content, $m);
    return $m;
  }

  function filterLinks(){
    $realLinks = "";    //获取链接地址
    $pic = "";     //获取图片地址
    $reallinks = $this->_sites["links"][2];
    $pic = $this->_sites["links"][5];
    

    foreach($reallinks as $v){
      if($v!="#"){
        $realLinks[] = $v;
      }
    }
    echo "<div><center>";
    
    foreach($realLinks as $i => $v){
      $b = $i % 4;
      if($b == 0){echo "<br>";}

      echo "<a href='".$realLinks[$i]."' target=_blank><img src='".$pic[$i]."' border=0></a>";
      
      
    }
    echo '<a href="index.php">back</a>';
    echo "</center></div>";
    
  }
}
function ac($lin) {
$spider = new spider("$lin");
$spider->start();
$spider->filterLinks();
}

if (isset($_REQUEST['url'])){
  $link=$_REQUEST['url'];
   ac($link);
}else{
echo "<center><form method='post' action='index.php'>url:<input name='url' type='text' value='http://'><input type='submit' value='Submit'>
      </form></center>";
    
    ac("http://images.google.cn/imgcat?hl=zh-CN&sa=h&catid=566");
}
?>