PHP：6种GET和POST请求发送方法

女爷i 2022-08-05 19:29 185阅读 0赞

在[i94web][]博客中，我试过了畅言和多说两种社会化评论框，后来还是抛弃了畅言，不安全。

无论是畅言还是多说，我都需要从远程抓取文章的评论数，然后存入本地数据库。对于多说，请求的格式如下：

// 获取评论次数,参数是文章ID
    function getCommCount($postid)
    {
        $jsondata = file_get_contents("http://api.duoshuo.com/threads/counts.json?short_name=i94web&threads=$postid");
        // 设置true返回数组,不设置或者是false则返回对象
        $resjson= json_decode($jsondata,true);
        return $resjson['response'][$postid]['comments'];
    }

对于远程请求，有很多种方法。今天，LZ就搜罗了六种，供大家参考。

**1、用file\_get\_contents 以get方式获取内容：**

<?php
    $url='http://www.ido321.com/';
    $html = file_get_contents($url);
    echo $html;
    ?>

**   2、用fopen打开url，用get方式获取**

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

**3、用file\_get\_contents 以post方式获取内容：**

$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;

**    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**

**     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/1.1n";
    $request.="Host: ".$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;
    }

**    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**

$ch = curl_init();
    $timeout = 5;
    curl_setopt ($ch, CURLOPT_URL, ‘http://www.ido321.com/');
    curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
    $file_contents = curl_exec($ch);
    curl_close($ch);
     
    echo $file_contents;

原文首发：[http://www.ido321.com/1297.html][http_www.ido321.com_1297.html]  
  
下一篇：[CSS 3的display：盒类型详解 ][CSS 3_display_]

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