note 98142 added to function.http-get-request-body

[email protected] Thu, 27 May 2010 17:03:05 -0700
Newsgroups	php.notes
Message-ID	<[email protected]>
It seems that there is some weird behavior when using http_get_request_body() with fopen('php://input'). Specifically, reading the input with the fopen('php://input') routine before calling http_get_request_body() on a PUT HTTP request.

Here are some examples:

A POST request:
*********************************************************
PUT http://example.com/requestbodytest.php HTTP/1.1
Host: example.com
Keep-Alive: 300
Connection: keep-alive
Content-Type: text/xml
Content-Length: 58

<?xml version="1.0" encoding="utf-8" ?>
<body>test</body>
*********************************************************

with the following script:
*********************************************************
<?php
$body = '';
$fh   = @fopen('php://input', 'r');
if ($fh)
{
  while (!feof($fh))
  {
    $s = fread($fh, 1024);
    if (is_string($s))
    {
      $body .= $s;
    }
  }
  fclose($fh);
}
print("-------------- PHP Input Stream ----------------\n$body\n\n");

$body2 = http_get_request_body();
print("---------- http_get_request_body() -------------\n$body2\n\n");

?>
*********************************************************

outputs this:
*********************************************************
-------------- PHP Input Stream ----------------
<?xml version="1.0" encoding="utf-8" ?>
<body>test</body>

---------- http_get_request_body() -------------
<?xml version="1.0" encoding="utf-8" ?>
<body>test</body>
*********************************************************

The same request to the same script using an HTTP PUT request, however, outputs this:
*********************************************************
-------------- PHP Input Stream ----------------
<?xml version="1.0" encoding="utf-8" ?>
<body>test</body>

---------- http_get_request_body() -------------
*********************************************************

It seems a valid workaround is to put a call to http_get_request_body() to cache the body content before an expected read to php://input (i.e. simply calling the function without manually storing the result caches the content for subsequent calls).
----
Server IP: 208.69.120.55
Probable Submitter: 75.103.2.138
----
Manual Page -- http://www.php.net/manual/en/function.http-get-request-body.php
Edit        -- https://master.php.net/note/edit/98142
Del: integrated  -- https://master.php.net/note/delete/98142/integrated
Del: useless     -- https://master.php.net/note/delete/98142/useless
Del: bad code    -- https://master.php.net/note/delete/98142/bad+code
Del: spam        -- https://master.php.net/note/delete/98142/spam
Del: non-english -- https://master.php.net/note/delete/98142/non-english
Del: in docs     -- https://master.php.net/note/delete/98142/in+docs
Del: other reasons-- https://master.php.net/note/delete/98142
Reject      -- https://master.php.net/note/reject/98142
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