A simple example of php sorting two dimensional arrays
- 2020-11-30 08:12:04
- OfStack
In this article, php USES the array_multisort function to sort 2-dimensional arrays. If you need it, please refer to it. Following on from the previous article: PHP2-dimensional array sorting custom function, today we will introduce an example of php2-dimensional array sorting.
The sorting of 2-dimensional arrays by php is simple, using the array_multisort function.
Example:
<?php
/**
* php2 Dimensional array sort
* edit www.ofstack.com
*/
$data = array();
$data[] = array('volume' => 67, 'edition' => 2);
$data[] = array('volume' => 86, 'edition' => 1);
$data[] = array('volume' => 85, 'edition' => 6);
$data[] = array('volume' => 98, 'edition' => 2);
$data[] = array('volume' => 86, 'edition' => 6);
$data[] = array('volume' => 67, 'edition' => 7);
// Gets a list of columns
foreach ($data as $key => $row)
{
$volume[$key] = $row['volume'];
$edition[$key] = $row['edition'];
}
array_multisort($volume, SORT_DESC, $edition, SORT_ASC, $data);
print_r($data);
?>
Output results:
Array
(
[0] => Array
(
[volume] => 98
[edition] => 2
)
[1] => Array
(
[volume] => 86
[edition] => 1
)
[2] => Array
(
[volume] => 86
[edition] => 6
)
[3] => Array
(
[volume] => 85
[edition] => 6
)
[4] => Array
(
[volume] => 67
[edition] => 2
)
[5] => Array
(
[volume] => 67
[edition] => 7
)
)
Description:
The parameters of the array_multisort function are very flexible, so you can refer to the instructions in the php manual for further study.