php发送get、post请求的几种方法

方法1: 用file_get_contents 以get方式获取内容

<?php$url='http://www.domain.com/';$html = file_get_contents($url);echo $html;?>

方法2: 用fopen打开url, 以get方式获取内容

<?php$fp = fopen($url, 'r');stream_get_meta_data($fp);while(!feof($fp)) {$result .= fgets($fp, 1024);}echo "url body: $result";fclose($fp);?>

方法3：用file_get_contents函数,以post方式获取url

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

方法4：用fsockopen函数打开url，以get方式获取完整的数据，包括header和body,fsockopen需要 PHP.ini 中 allow_url_fopen 选项开启

<?php    function get_url ($url,$cookie=false){        $url = parse_url($url);        $query = $url['path']."?".$url['query'];        echo "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;    }?>

方法5：用fsockopen函数打开url，以POST方式获取完整的数据，包括header和body

<?phpfunction 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: $referrer\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;}?>

方法6:使用curl库，使用curl库之前，可能需要查看一下php.ini是否已经打开了curl扩展

<?php$ch = curl_init();$timeout = 5;curl_setopt ($ch, CURLOPT_URL, 'http://www.domain.com/');curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);$file_contents = curl_exec($ch);curl_close($ch);echo $file_contents;?>