note 111225 added to function.usort
| From: | matt at declaire dot com | Date: | Mon, 28 Jan 2013 20:26:23 +0000 |
| Subject: | note 111225 added to function.usort | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-193415@lists.php.net to get a copy of this message | ||
stable usort
function stable_usort(&$values, $compare_func) {
// wrap items into pre-sorted-order/value pairs
foreach ($values as $ndx => &$value) {
$value = array(
'order' => $ndx,
'value' => $value,
);
}
// sort with callable, fallback to pre-sort order
usort($values, function($a, $b) use($compare_func) {
$compare = $compare_func($a['value'], $b['value']);
if ($compare == 0) return $a['order'] < $b['order'] ? -1 : 1;
return $compare;
});
// unwrap items
foreach ($values as &$value) {
$value = $value['value'];
}
}
----
Server IP: 69.147.83.199
Probable Submitter: 74.115.50.3
----
Manual Page -- http://php.net/manual/en/function.usort.php
Edit -- https://master.php.net/note/edit/111225
Del: integrated -- https://master.php.net/note/delete/111225/integrated
Del: useless -- https://master.php.net/note/delete/111225/useless
Del: bad code -- https://master.php.net/note/delete/111225/bad+code
Del: spam -- https://master.php.net/note/delete/111225/spam
Del: non-english -- https://master.php.net/note/delete/111225/non-english
Del: in docs -- https://master.php.net/note/delete/111225/in+docs
Del: other reasons-- https://master.php.net/note/delete/111225
Reject -- https://master.php.net/note/reject/111225
Search -- https://master.php.net/manage/user-notes.php