本文實例講述了PHP設置頭信息及取得返回頭信息的方法。分享給大家供大家參考,具體如下:
設置請求的頭信息,我們可以用header函數,可以用fsockopen,可以用curl等,本文主要講的是用curl來設置頭信息,並取得返回後的頭信息。
一、請求方設置自己的頭信息,header.php
<?php function FormatHeader($url, $myIp = null,$xml = null) { // 解悉url $temp = parse_url($url); $query = isset($temp['query']) ? $temp['query'] : ''; $path = isset($temp['path']) ? $temp['path'] : '/'; $header = array ( "POST {$path}?{$query} HTTP/1.1", "Host: {$temp['host']}", "Content-Type: text/xml; charset=utf-8", 'Accept: */*', "Referer: http://{$temp['host']}/", 'User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; SV1)', "X-Forwarded-For: {$myIp}", "Content-length: 380", "Connection: Close" ); return $header; } $interface = 'http://localhost/test/header2.php'; $header = FormatHeader($interface,'10.1.11.1'); $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $interface); curl_setopt($ch, CURLOPT_HTTPHEADER, $header); //設置頭信息的地方 curl_setopt($ch, CURLOPT_HEADER, 0); //不取得返回頭信息 curl_setopt($ch, CURLOPT_TIMEOUT, 5); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); $result = curl_exec($ch); var_dump($result); ?>
二、被請求方,取得頭信息,header2.php
<?php print_r($_SERVER); //頭信息裡面有內容絕大部分是放在系統變量裡面的 ?>
三、看一下header.php請求的結果
string(1045) "Array ( [HTTP_HOST] => localhost [CONTENT_TYPE] => text/xml; charset=utf-8 [HTTP_ACCEPT] => */* [HTTP_REFERER] => http://localhost/ [HTTP_USER_AGENT] => Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; SV1) [HTTP_X_FORWARDED_FOR] => 10.1.11.1 [CONTENT_LENGTH] => 380 [PATH] => /usr/local/bin:/usr/bin:/bin [SERVER_SIGNATURE] => <address>Apache/2.2.16 (Ubuntu) Server at localhost Port 80</address> 。。。。。。。。。。。。。。。。。。。。。。。。。。。。 )
上面那幾個,我們可以明顯看到,是我設置的頭信息。
四、取得返回的頭信息
復制代碼 代碼如下:curl_setopt($ch, CURLOPT_HEADER, 1); //取得返回頭信息
我們把CURLOPT_HEADER設置成1,在取得的結果當中,顯示數組的前面會有這些信息
string(1239) "HTTP/1.1 200 OK Date: Fri, 27 May 2011 01:57:57 GMT Server: Apache/2.2.16 (Ubuntu) X-Powered-By: PHP/5.3.3-1ubuntu9.5 Vary: Accept-Encoding Content-Length: 1045 Content-Type: text/html Array ( [HTTP_HOST] => localhost [CONTENT_TYPE] => text/xml; charset=utf-8 [HTTP_ACCEPT] => */*
五、$_SERVER部分頭信息是拿不到的
修改一下header.php
<?php function FormatHeader($url, $myIp = null,$xml = null) { // 解悉url $temp = parse_url($url); $query = isset($temp['query']) ? $temp['query'] : ''; $path = isset($temp['path']) ? $temp['path'] : '/'; $header = array ( "POST {$path}?{$query} HTTP/1.1", "Host: {$temp['host']}", "Content-Type: text/xml; charset=utf-8", 'Accept: */*', "Referer: http://{$temp['host']}/", 'User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; SV1)', "X-Forwarded-For: {$myIp}", "Content-length: " . strlen($xml) ."\r\n\r\n" .$xml, //修改1 "Connection: Close" ); return $header; } $xml = '<?xml version="1.0" encoding="utf-8"?> //修改2 <profile> <sha1>adsfadsf</sha1> <user_id>asdfasdf</user_id> <album_id>asdf</album_id> <album_name>asdf</album_name> <tags>asdfasd</tags> <title>asdfasdf</title> <content>asdfadsf</content> <type>asdfasdf</type> <copyright>asdfasdf</copyright> </profile>'; $interface = 'http://localhost/test/header2.php'; $header = FormatHeader($interface,'10.1.11.1',$xml); //修改3 $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $interface); curl_setopt($ch, CURLOPT_HTTPHEADER, $header); //設置頭信息的地方 curl_setopt($ch, CURLOPT_HEADER, 0); //不取得返回頭信息 curl_setopt($ch, CURLOPT_TIMEOUT, 5); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); $result = curl_exec($ch); var_dump($result); ?>
如果這樣的話,header2.php裡面,打印$_SERVER不可能把頭信息中的xml打印出來。這個時候,我們在header2.php後面加上以下二行
$raw_post_data = file_get_contents('php://input', 'r'); var_dump($raw_post_data);
這樣就可以取到$xml的內容,並且只會取$xml的內容。
更多關於PHP相關內容感興趣的讀者可查看本站專題:《PHP基本語法入門教程》、《php面向對象程序設計入門教程》及《php curl用法總結》
希望本文所述對大家PHP程序設計有所幫助。