I'm working out this odd bug in Wordpress, and I don't know how wordpress works, but I ran around for an hour trying to isolate the problem and see where the root of the issue comes from.
Turns out the problem is that the thing isn't updating because $_POST does not have the data that is being requested.
At the top of the file that I'm accessing from the browser, before any other code, I did the following:
echo file_get_contents("php://input"); print_r($_POST); exit();
I see that wordpress uses $_POST as a catch-all global and writes to it as well. I thought maybe wordpress kicks the data out somewhere but I couldn't find that. This is at the top of the file anyways, before anything else happens at all.. I don't think it's even possible for the variables to be modified before that
The output from that is
widget-text%5B3%5D%5Btitle%5D=Test&widget-text%5B3%5D%5Btext%5D=THISISATEST&sidebar=sidebar-1&sidebar-1_position=1&sidebar-2_position=&sidebar-3_position=&sidebar-4_position=&sidebar-5_position=&savewidget=Save+Widget&widget-id=text-3&id_base=text&multi_number=3&_wpnonce=36852083b6&_wp_http_referer=%2Fwp-admin%2Fwidgets.php%3Fmessage%3D0%26editwidget%3Dtext-3%26sidebar%3Dsidebar-1%26key%3D0 Array ( [widget-text] => Array (  => Array ( [title] => Test ) ) [sidebar] => sidebar-1 [sidebar-1_position] => 1 [sidebar-2_position] => [sidebar-3_position] => [sidebar-4_position] => [sidebar-5_position] => [savewidget] => Save Widget [widget-id] => text-3 [id_base] => text [multi_number] => 3 [_wpnonce] => 36852083b6 [_wp_http_referer] => /wp-admin/widgets.php?message=0&editwidget=text-3&sidebar=sidebar-1&key=0 )
Note how in the raw data,
widget-text[text]=THISISATEST exists. But
$_POST['widget-text']['3']['text'] is undefined.
I looked through phpinfo and can't find any relevant settings. I am on PHP Version 5.3.8, Apache 2, I'm running suse on AWS.
Does anyone have any ideas on how to make $_POST parse the raw data correctly?