Bug #50407 [Com]: http_build_query() on empty array

Edit report at https://bugs.php.net/bug.php?id=50407&edit=1 ID: 50407 Comment by: alestork78 at yahoo dot it Reported by: php at gimme dot org Summary: http_build_query() on empty array Status: Not a bug Type: Bug Package: URL related Operating System: Win PHP Version: 5.2.11 Block user comment: N Private report: N New Comment: In 2022 this in still marked as NOT A BUG because someone did not understand the difference between "not set" and "empty"? example.com?foo=bar (set value) example.com?foo= (set value to "empty") example.com? (do nothing) The only solution to have things work like above is to rework this bad designed core php function every time? Won't be ever fixed? Previous Comments: ------------------------------------------------------------------------ [2012-08-29 14:45:03] arnaud dot morin at gmail dot com This is, IMHO, a poor design solution because we sometime want to provide a clear value to a parameter... as said before, empty is not the same as not provided... ------------------------------------------------------------------------ [2012-02-17 21:23:57] ast dot derek at gmail dot com Not set is not the same as empty: http://example.com/?foo=&bar=2&hash=XXXX $hash = $_GET['hash']; unset($_GET['hash']); if ($hash != hash(http_build_query($_GET))) { echo 'Hash mismatch'; die; } Now we can't check the hash as http_build_query() won't return the "URL-encoded query string from the associative (or indexed) array provided." The original array is not used, a filtered copy was processed instead. ------------------------------------------------------------------------ [2010-10-06 13:42:29] adam dot zivner at gmail dot com Applications often make distinction between empty and not set. Example: Set filter to '': http://example.com/articles/?filter= Don't change filter, get it from cookies: http://example.com/articles/ But of course, this could be wrong way of using this. Is suggested explanation part of some standard/specification? ------------------------------------------------------------------------ [2009-12-08 10:05:03] jani@php.net Not setting is same as setting it empty. No bug. ------------------------------------------------------------------------ [2009-12-08 08:31:10] php at gimme dot org Description: ------------ http_build_query() ignore the key in array( key => array() ).. Reproduce code: --------------- <?php $param = array( '_COOKIE' => array(), '_HEADER' => array( 'User-Agent' => 'Mozilla...' , ), ); echo http_build_query( $param ); ?> Expected result: ---------------- _COOKIE%5B0%D=&_HEADER%5BUser-Agent%5D=Mozilla... Actual result: -------------- _HEADER%5BUser-Agent%5D=Mozilla... ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=50407&edit=1