PHP中4种常用的抓取网络数据方法_PHP教程

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$url = 'http://localhost/test2.php';

$html = file_get_contents($url);

echo $html;

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$url = 'http://localhost/test2.php';

$fp = fopen($url, 'r');

stream_get_meta_data($fp);

$result = '';

while(!feof($fp))

{

$result .= fgets($fp, 1024);

}

echo "url body: $result";

fclose($fp);

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$data = array(

'foo'=>'bar',

'baz'=>'boom',

'site'=>'www.jb51.net',

'name'=>'nowa magic');

$data = http_build_query($data);

//$postdata = http_build_query($data);

$options = array(

'http' => array(

'method' => 'POST',

'header' => 'Content-type:application/x-www-form-urlencoded',

'content' => $data

//'timeout' => 60 * 60 // 超时时间（单位:s）

)

);

$url = "http://localhost/test2.php";

$context = stream_context_create($options);

$result = file_get_contents($url, false, $context);

echo $result;

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$url = 'http://localhost/test2.php?site=jb51.net';

$ch = curl_init();

$timeout = 5;

curl_setopt ($ch, CURLOPT_URL, $url);

curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);

curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);

$file_contents = curl_exec($ch);

curl_close($ch);

echo $file_contents;