采集源代码示范

header("content-type:text/html;charset=utf-8");
set_time_limit(0);
$url='http://sports.sohu.com/nba.shtml';
$str=file_get_contents($url);
$str=iconv("GBK","utf-8",$str);
//echo $str;
$reg='#
.*#isU';
preg_match($reg,$str,$arr);
//var_dump($arr);
//标题
$reg2='#
(.*)
#isU';
preg_match_all($reg2,$arr[0],$data1);
//var_dump($data1);
//内容
$reg3='#
(.*);
preg_match_all($reg3,$arr[0],$data2);
//var_dump($data2);
$pdo=new PDO('mysql:host=localhost;dbname=test','root','root');
$pdo->exec("set names utf8");
for($i=0;$i<count($data1[1]);$i++){
    $title=$data1[1][$i];
    $content=$data2[1][$i];
    $sql="insert into nba (title,content) VALUES ('$title','$content')";
    $pdo->exec($sql);
}
//图片
$reg4='##isU';
preg_match_all($reg4,$arr[0],$data3);
//var_dump($data3);
foreach($data3[1] as $v){
    $path=file_get_contents($v);
    $ext=substr($v,strrpos($v,'.'));
    $file_name='img/'.time().rand(1000,9999).$ext;
    file_put_contents($file_name,$path);
}