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    php调用远路url的六种方法

    2016-06-13 13:07:17原创316
    php调用远程url的六种方法

    示例代码1: 用file_get_contents 以get方式获取内容
    ???
    $url='http://www.baidu.com/';

    $html = file_get_contents($url);
    ?? //print_r($http_response_header);
    ?? ec($html);
    ?? printhr();

    ?? printarr($http_response_header);

    printhr();
    ?? ?>
    ?
    ??? 示例代码2: 用fopen打开url, 以get方式获取内容
    ??
    ?? $fp = fopen($url, 'r');
    ? ?
    ?? printarr(stream_get_meta_da

    ta($fp));

    printhr();
    ?? while(!feof($fp)) {
    ?????? $result .= fgets($fp, 1024);
    }
    echo "url body:??? $result";
    ?? printhr();

    ?? fclose($fp);
    ?? ?>

    示例代码3:用file_get_contents函数,以post方式获取url

    ?? ?? $data = array ('foo' => 'bar');
    ?? $data = http_build_query($data);

    ?? $opts = array (
    'http' => array (
    ?? 'method' => 'POST',
    ??? 'header'=> "Content-type: application/x-www-form-urlencoded\r\n" .
    ???? "Content-Length: " . strlen($data) . "\r\n",
    ?? 'content' => $data
    ?? ),
    ?? );

    $context = stream_context_create($opts);
    $html = file_get_contents('http://localhost/e/admin/test.html', false, $context);

    echo $html;
    ?>

    示例代码4:用fsockopen函数打开url,以get方式获取完整的数据,包括header和body
    function get_url ($url,$cookie=false) {
    $url = parse_url($url);
    $query = $url[path]."?".$url[query];
    ec("Query:".$query);
    $fp = fsockopen( $url[host], $url[port]?$url[port]:80 , $errno, $errstr, 30);
    if (!$fp) {
    ?????? return false;
    } else {
    ?????? $request = "GET $query HTTP/1.1\r\n";
    ?????? $request .= "Host: $url[host]\r\n";
    ?????? $request .= "Connection: Close\r\n";
    ?????? if($cookie) $request.="Cookie:?? $cookie\n";
    ?????? $request.="\r\n";
    ?????? fwrite($fp,$request);
    ?????? while(!@feof($fp)) {
    ???????? $result .= @fgets($fp, 1024);
    ?????? }
    ?????? fclose($fp);
    ?????? return $result;
    }
    }


    //获取url的html部分,去掉header
    function GetUrlHTML($url,$cookie=false) {

    ??? $rowdata = get_url($url,$cookie);
    ??? if($rowdata)
    ??? {
    ??????? $body= stristr($rowdata,"\r\n\r\n");
    ??????? $body=substr($body,4,strlen($body));
    ??????? return $body;
    ??? }
    ? ?
    ??? return false;

    }


    ?>

    示例代码5:用fsockopen函数打开url,以POST方式获取完整的数据,包括header和body
    function HTTP_Post($URL,$data,$cookie, $referrer="") {

    // parsing the given URL
    $URL_Info=parse_url($URL);

    // Building referrer
    if($referrer=="") // if not given use this script as referrer
    $referrer="111";

    // making string from $data
    foreach($data as $key=>$value)
    $values[]="$key=".urlencode($value);
    $data_string=implode("&",$values);

    // Find out which port is needed - if not given use standard (=80)
    if(!isset($URL_Info["port"]))
    $URL_Info["port"]=80;

    // building POST-request:
    $request.="POST ".$URL_Info["path"]." HTTP/1.1\n";
    $request.="Host: ".$URL_Info["host"]."\n";
    $request.="Referer: $referer\n";
    $request.="Content-type: application/x-www-form-urlencoded\n";
    $request.="Content-length: ".strlen($data_string)."\n";
    $request.="Connection: close\n";

    $request.="Cookie:?? $cookie\n";

    $request.="\n";
    $request.=$data_string."\n";

    $fp = fsockopen($URL_Info["host"],$URL_Info["port"]);
    fputs($fp, $request);
    while(!feof($fp)) {
    ?????? $result .= fgets($fp, 1024);
    }
    fclose($fp);

    return $result;
    }
    printhr();
    ?>
    示例代码6:使用curl库,使用curl库之前,你可能需要查看一下php.ini,查看是否已经打开了curl扩展

    $ch = curl_init();
    $timeout = 5;
    curl_setopt ($ch, CURLOPT_URL, 'http://www.baidu.com/');
    curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
    $file_contents = curl_exec($ch);
    curl_close($ch);

    echo $file_contents;
    ?>
    关于curl库:
    curl官方网站http://curl.haxx.se/
    curl 是使用URL语法的传送文件工具,支持FTP、FTPS、HTTP HTPPS SCP SFTP TFTP TELNET DICT FILE和LDAP。curl 支持SSL证书、HTTP POST、HTTP PUT 、FTP 上传,kerberos、基于HTT格式的上传、代理、cookie、用户+口令证明、文件传送恢复、http代理通道和大量其他有用的技巧

    function printarr(array $arr)
    {
    ??? echo "
    Row field count: ".count($arr)."
    ";
    ??? foreach($arr as $key=>$value)
    ??? {
    ????? ?
    ??????????? echo "$key=$value???
    ";
    ??? }
    }
    ?>

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