note 75410 added to function.sort
| From: | alishahnovin at hotmail dot com | Date: | Mon, 28 May 2007 17:29:59 +0000 |
| Subject: | note 75410 added to function.sort | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-126983@lists.php.net to get a copy of this message | ||
Here's my fixed up msort array. What it does is goes through a multidimensional array, and
sorts it by the desired key (defaulting to 'id').
So, for example, if you have an array like:
array[0]['value'] = "statement 2"
array[0]['id'] = "2"
array[1]['value'] = "statement 3"
array[1]['id'] = "3"
array[2]['value'] = "statement 1"
array[2]['id'] = "1"
it would rearrange and return the array to be like:
array[0]['value'] = "statement 1"
array[0]['id'] = "1"
array[1]['value'] = "statement 2"
array[1]['id'] = "2"
array[2]['value'] = "statement 3"
array[2]['id'] = "3"
The 'id' index can start at any point, and any array item missing the id index will be
added to the end.
<?php
function msort($array, $id="id") {
$temp_array = array();
while(count($array)>0) {
$lowest_id = 0;
$index=0;
foreach ($array as $item) {
if (isset($item[$id]) && $array[$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));
}
return $temp_array;
}
?>
Ex:
<?php
//oh no, this is not in the ordered by id!!
$data[] = array("item"=>"item 4");
$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) ); //just msort it!
/* outputs
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
3 =>
array
'item' => 'item 4' (length=6)
*/
?>
----
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Probable Submitter: 204.244.149.125
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