note 76547 added to function.sort
| From: | alishahnovin at hotmail dot com | Date: | Thu, 19 Jul 2007 23:16:20 +0000 |
| Subject: | note 76547 added to function.sort | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-128749@lists.php.net to get a copy of this message | ||
Someone asked me if the msort I posted below can do a sort by descending... (as it sorts by
ascending...smallest to greatest).
It's a simple fix with an extra param, and then an array_reverse...but for the lazy, here you
are:
<?php
function msort($array, $id="id", $sort_ascending=true) {
$temp_array = array();
while(count($array)>0) {
$lowest_id = 0;
$index=0;
foreach ($array as $item) {
if (isset($item[$id])) {
if ($array[$lowest_id][$id]) {
if ($item[$id]<$array[$lowest_id][$id]) {
$lowest_id = $index;
}
}
}
$index++;
}
$temp_array[] = $array[$lowest_id];
$array = array_merge(array_slice($array, 0,$lowest_id), array_slice($array,
$lowest_id+1));
}
if ($sort_ascending) {
return $temp_array;
} else {
return array_reverse($temp_array);
}
}
?>
<?php
//oh no, this is not in the ordered by id!!
$data[] = array("item"=>"item 1", "id"=>1);
$data[] = array("item"=>"item 3", "id"=>3);
$data[] = array("item"=>"item 2", "id"=>2);
var_dump( msort($data, "id", false) ); //just msort it...greatest to smallest
var_dump( msort($data, "id") ); //just msort it...smallest to greatest
/* outputs
array
0 =>
array
'item' => 'item 3' (length=6)
'id' => 3
1 =>
array
'item' => 'item 2' (length=6)
'id' => 2
2 =>
array
'item' => 'item 1' (length=6)
'id' => 1
array
0 =>
array
'item' => 'item 1' (length=6)
'id' => 1
1 =>
array
'item' => 'item 2' (length=6)
'id' => 2
2 =>
array
'item' => 'item 3' (length=6)
'id' => 3
*/
?>
----
Server IP: 66.207.199.35
Probable Submitter: 204.244.149.125
----
Manual Page -- http://www.php.net/manual/en/function.sort.php
Edit -- https://master.php.net/note/edit/76547
Del: integrated -- https://master.php.net/note/delete/76547/integrated
Del: useless -- https://master.php.net/note/delete/76547/useless
Del: bad code -- https://master.php.net/note/delete/76547/bad+code
Del: spam -- https://master.php.net/note/delete/76547/spam
Del: non-english -- https://master.php.net/note/delete/76547/non-english
Del: in docs -- https://master.php.net/note/delete/76547/in+docs
Del: other reasons-- https://master.php.net/note/delete/76547
Reject -- https://master.php.net/note/reject/76547
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