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Sort Multidimensional Array by date in PHP

Sort Multidimensional Array by date in PHP
Published Feb 07,2022 by Kailash Singh
0 Comment 1749 Views
In this post, we are going to teach, how to Sort Multidimensional Array in ascending and descending order by date in PHP.
What is Multidimensional Array?
A Multidimensional Array is an array contains one or more arrays.
1) Sort Multidimensional Array in Ascending Order
<?php
$data[] = array('id' => 3, 'text' => 'Kailash Singh', 'date' => '2022-02-07 13:04:25');
$data[] = array('id' => 1, 'text' => 'Amit Singh', 'date' => '2022-02-07 16:04:24');
$data[] = array('id' => 2, 'text' => 'Elevenstech', 'date' => '2022-02-06 10:04:20');
usort($data, function($a, $b) {
return strtotime($a['date']) - strtotime($b['date']);
});
echo '<pre>'; print_r($data);
?>
2) Sort Multidimensional Array in Descending Order
<?php
$data[] = array('id' => 3, 'text' => 'Kailash Singh', 'date' => '2022-02-07 13:04:25');
$data[] = array('id' => 1, 'text' => 'Amit Singh', 'date' => '2022-02-07 16:04:24');
$data[] = array('id' => 2, 'text' => 'Elevenstech', 'date' => '2022-02-06 10:04:20');
usort($data, function($a, $b) {
return strtotime($b['date']) - strtotime($a['date']);
});
echo '<pre>'; print_r($data);
?>
What is an usort() function?
It is an array using a user-defined comparision function.
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