如何使用带有$ GLOBALS [“HTTP_RAW_POST_DATA”]的file_get_contents（$ filename）来获取文件名？

Question

I am using file_put_contents($filename, $jpg) to upload my jpg files to some location. How to use file_get_contents ($filename); with ($GLOBALS["HTTP_RAW_POST_DATA"])? I am trying something like $jpg = $GLOBALS["HTTP_RAW_POST_DATA"]; $img = $_GET["img"]; $filename = "applicantsPhotos/applicantPhoto". mktime(). ".jpg"; file_put_contents($filename, $jpg); echo file_get_contents ($filename); die;

but this is not working well(neigther I am getting filename, Not die stops script). Am I using wrong method to get the name ?

Answer 1

You should know what is exactly raw POST data: $_POST can be said as and outcome after splitting the $HTTP_RAW_POST_DATA, PHP splits the raw post data and formats in the way we see it in the $_POST

For example if $HTTP_RAW_POST_DATA looks something like this:

key1=value1&key2=value2

then $_POST would look like this:

$_POST = array(
     "key1" => "value1",
     "key2" => "value2",);

Most probably you include some other things (elements) from the post in your *.jpg data. Make sure you include only raw and valid *.jpg picture information, not other elements.

Also keep in mind that $HTTP_RAW_POST_DATA is not available with form's type enctype="multipart/form-data".

To get the Raw Post Data use:

<?php $postdata = file_get_contents("php://input"); ?>

php://input is a read-only stream that allows you to read raw data from the request body. In the case of POST requests, it is preferable to use php://input instead of $HTTP_RAW_POST_DATA as it does not depend on special php.ini directives.

More information here, here and here.