php发送get、post请求的6种方法代码示例

本文主要展示了php发送get、post请求的6种方法的代码示例,分别为使用file_get_contents 、fopen、fsockopen、curl来发送GET和POST请求，代码如下：

方法1: 用file_get_contents 以get方式获取内容：

<?php
    $url='http://www.jb51.net/';
    $html = file_get_contents($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);
 
    $opts = array (
        ‘http' => array (
            ‘method' => ‘POST',
            ‘header'=> “Content-type: application/x-www-form-urlencodedrn” . “Content-Length: ” . strlen($data) . “rn”,
            ‘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)
    {
 4         $url = parse_url($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/1.1rn”;
            $request .= “Host: $url[host]rn”;
            $request .= “Connection: Closern”;
            if($cookie) $request.=”Cookie:  $cookien”;
15             $request.=”rn”;
            fwrite($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,”rnrn”);
            $body=substr($body,4,strlen($body));
            return $body;
33         }
 
        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

<?php
    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)
18         if(!isset($URL_Info["port"]))
            $URL_Info["port"]=80;
 
        // building POST-request:
        $request.=”POST “.$URL_Info["path"].” HTTP/1.1n”;
        $request.=”Host: “.$URL_Info["host"].”n”;
        $request.=”Referer: $referern”;
        $request.=”Content-type: application/x-www-form-urlencodedn”;
        $request.=”Content-length: “.strlen($data_string).”n”;
        $request.=”Connection: closen”;
 
        $request.=”Cookie:  $cookien”;
 
        $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();
 3     $timeout = 5;
    curl_setopt ($ch, CURLOPT_URL, ‘http://www.jb51.net/');
    curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
    $file_contents = curl_exec($ch);
    curl_close($ch);
 
    echo $file_contents;
?>