PHP 通过curl库函数获取网页内容

function get_web_page( $url )
{
$options = array(
CURLOPT_RETURNTRANSFER => true,     // return web page 返回网页
CURLOPT_HEADER         => false,    // 不返回头信息
CURLOPT_FOLLOWLOCATION => true,     // follow redirects
CURLOPT_ENCODING       => "",       // handle all encodings
CURLOPT_USERAGENT      => "spider", // 设置UserAgent
CURLOPT_AUTOREFERER    => true,     // set referer on redirect
CURLOPT_CONNECTTIMEOUT => 120,      // timeout on connect 连接超时
CURLOPT_TIMEOUT        => 120,      // timeout on response 回复超时
CURLOPT_MAXREDIRS      => 10,       // stop after 10 redirects
);
$ch      = curl_init( $url );
curl_setopt_array( $ch, $options );
$content = curl_exec( $ch );
$err     = curl_errno( $ch );
$errmsg  = curl_error( $ch );
$header  = curl_getinfo( $ch );
curl_close( $ch );
$header['errno']   = $err;
$header['errmsg']  = $errmsg;
$header['content'] = $content;
return $header;
}