php 模拟post的新发现,重点在最后的新方法

最近两天项目需要,由于服务器正在开发,客户端进度稍快一些,没有服务器进行联调。因此我重操旧业,用PHP快速的写了一些web页面,算是当测试桩程序了,七八个web接口,基本上5到6个小时搞定了。由于当前的服务器需要与其他服务器进行对接,因此写的这个web服务还需要充当client角色,向其他服务器发送请求。

在网上搜了一下,基本上两种方法:(转自网友文章)

1.通过curl函数

$post_data = array () ;

$post_data [ ' clientname ' ] = " test08 " ;

$post_data [ ' clientpasswd ' ] = " test08 " ;

$post_data [ ' submit ' ] = " submit " ;

$url = ' http://xxx.xxx.xxx.xx/xx/xxx/top.php ' ;

$o = "" ;

foreach ( $post_data as $k => $v )

{

$o .= " $k = " . urlencode ( $v ) . " & " ;

}

$post_data = substr ( $o , 0 ,- 1 ) ;

$ch = curl_init () ;

curl_setopt ( $ch , CURLOPT_POST , 1 ) ;

curl_setopt ( $ch , CURLOPT_HEADER , 0 ) ;

curl_setopt ( $ch , CURLOPT_URL , $url ) ;

//为了支持cookie

curl_setopt ( $ch , CURLOPT_COOKIEJAR , ' cookie.txt ' ) ;

curl_setopt ( $ch , CURLOPT_POSTFIELDS , $post_data ) ;

$result = curl_exec ( $ch ) ;

2. 通过fsockopen

$URL =‘ http : //xxx.xxx.xxx.xx/xx/xxx/top.php';

$post_data [ ' clientname ' ] = " test08 " ;

$post_data [ ' clientpasswd ' ] = " test08 " ;

$post_data [ ' submit ' ] = " ログイン " ;

$referrer = "" ;

// parsing the given URL

$URL_Info = parse_url ( $URL ) ;

// Building referrer

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

$referrer = $_SERVER [ " SCRIPT_URI " ] ;

// making string from $data

foreach ( $post_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 .= " /n " ;

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

$fp = fsockopen ( $URL_Info [ " host " ] , $URL_Info [ " port " ]) ;

fputs ( $fp , $request ) ;

while ( ! feof ( $fp )) {

$result .= fgets ( $fp , 128 ) ;

}

fclose ( $fp ) ;

上述两种方法没有封装成通用的function,我验证了方法2,发现基本上能实现功能,但有两个很大的缺点:

1. 延迟比较大,我在内网测试,用命令行进行的测试,发现响应有时候需要2S以上,不能接受。

2. 读到的response包含了HTTP头域信息,但是大部分情况下,我们只需要body部分内容,要提取body内容,还需要一番处理。

方法1感觉也很笨拙,似乎也很难满足我的需求,最后忘记在哪个英文网站上找到了下面这个方法:

function do_post_request($url, $data, $optional_headers = null)

{

$params = array('http' => array(

'method' => 'POST',

'content' => $data

));

if ($optional_headers !== null) {

$params['http']['header'] = $optional_headers;

}

$ctx = stream_context_create($params);

$fp = @fopen($url, 'rb', false, $ctx);

if (!$fp) {

throw new Exception("Problem with $url, $php_errormsg");

}

$response = @stream_get_contents($fp);

if ($response === false) {

throw new Exception("Problem reading data from $url, $php_errormsg");

}

return $response;

}

试用了一下,感觉效果非常好,简洁,通用,而且返回的内容仅仅是Body中内容。我也没去仔细研究这些API的说明,就采用了这个,没发现有大的问题。如果有人有类似需求,推荐大家采用这个function.

2018年7月24日

还有一个呢

function do_post_request3 ($url, $params = array()) {

$data_string = json_encode($params);

$c = curl_init();

curl_setopt($c, CURLOPT_URL, $url);

curl_setopt($c, CURLOPT_RETURNTRANSFER, 1);

curl_setopt($c, CURLOPT_CUSTOMREQUEST, 'POST');

curl_setopt($c, CURLOPT_POSTFIELDS, $data_string);

curl_setopt($c, CURLOPT_HTTPHEADER, array('Content-Type: application/json', 'Content-Length: ' . strlen($data_string)));

$rsp = curl_exec($c);

curl_close($c);

return json_decode($rsp, true);

}