ID: 24004
Comment by: thochgreve at php-resource dot de
Reported By: tuxedobob at mac dot com
Status: Open
Bug Type: Feature/Change Request
Operating System: Mac OS X 10.2.6
PHP Version: 4.3.2
New Comment:
the manual states that there is no efficient solution to keep the
original order if two elements are equal - I say there is:
usort creates an array with numeric indices anyway
just do that before the sorting
and if the comparison function returns 0, compare the indices
Previous Comments:
------------------------------------------------------------------------
[2003-06-03 17:45:01] tuxedobob at mac dot com
The script:
<?php
function comp($a, $b) {
if (ceil($a) < ceil($b)) return (-1);
if (ceil($a) > ceil($b)) return (1);
return 0;
}
$arr = array('5.2', '5.4', '5.5', '5.9');
for ($x = 0; $x < 10; $x++) {
usort($arr, "comp");
print_r($arr);
}
?>
(Any useful function can also be used for comp.)
When running the above script, usort() reverses the
array upon each iteration. The documentation says as
much might happen. However, it's much more useful if it
doesn't. Perhaps there can be a new function so usort()
can work the way it did in PHP<=4.0.6 for when the
speed penalty is not an issue?
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Edit this bug report at http://bugs.php.net/?id=24004&edit=1
