Home  >  Article  >  Backend Development  >  $POST 、$HTTP_RAW_POST_DATA、php://input三者之间的区别

$POST 、$HTTP_RAW_POST_DATA、php://input三者之间的区别

WBOY
WBOYOriginal
2016-06-23 13:51:14902browse

			<strong>$POST 、$HTTP_RAW_POST_DATA、php://input三者之间的区别</strong>
总是产生变量包含有原始的 POST 数据。否则,此变量仅在碰到未识别 MIME 类型的数据时产生。不过,访问原始 POST 数据的更好方法是 php://input。$HTTP_RAW_POST_DATA 对于 enctype="multipart/form-data" 表单数据不可用。 问题:    $HTTP_RAW_POST_DATA  == $_POST  吗?答案是为否。<strong>个人理解总结是这么玩的:</strong>
<span style="font-size:18px;">1:$POST我们常用的就不用介绍了吧</span>
<span style="font-size:18px;"></span>
<span style="font-family: Arial, Helvetica, sans-serif;"><span style="font-size:18px;">2:$GLOBALS['HTTP_RAW_POST_DATA']:</span></span>
<span style="font-size:18px;">	基本上$GLOBALS['HTTP_RAW_POST_DATA'] 和 $_POST是一样的。但是如果post过来的数据不是PHP能够识别的,你可以用 $GLOBALS['HTTP_RAW_POST_DATA']来接收,比如 text/xml 或者 soap 等等。PHP默认识别的数据类型是application/x-www.form-urlencoded标准的数据类型,用Content-Type=text/xml 类型,提交一个xml文档内容给了php server,要怎么获得这个POST数据。 The RAW / uninterpreted HTTP POST information can be accessed with:   $GLOBALS['HTTP_RAW_POST_DATA'] This is useful in cases where the post Content-Type is not something PHP understands (such as text/xml).由于PHP默认只识别application/x-www.form-urlencoded标准的数据类型,因此,对型如text/xml的内容无法解析为$_POST数组,故保留原型,交给$GLOBALS['HTTP_RAW_POST_DATA'] 来接收。</span>
<span style="font-size:18px;">3:php://input 也可以实现此这个功能:<span style="white-space:pre">	</span>php://input 允许读取 POST 的原始数据。和 $HTTP_RAW_POST_DATA 比起来,它给内存带来的压力较小,并且不需要任何特殊的 php.ini 设置。php://input 不能用于 enctype="multipart/form-data"。例子:leyangjun.html<form action="leyangjun.php" method="post">  <p>First name: <input type="text" name="fname"></p>  <p>Last name: <input type="text" name="lname"></p>  <input type="submit" value="Submit">
</form>leyangjun.php:<?php <span style="white-space:pre">	</span>echo "<pre class="brush:php;toolbar:false">";<span style="white-space:pre">	</span>print_r($_POST);<span style="white-space:pre">	</span>$data = file_get_contents('php://input');   //都要解下码<span style="white-space:pre">	</span>print_r(urldecode($data));<span style="white-space:pre">	</span>echo "<br>";<span style="white-space:pre">	</span>print_r(urldecode($GLOBALS['HTTP_RAW_POST_DATA']));?>


Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn