/PHP/Sort a multidimensional array by date element in php

Sort a multidimensional array by date element in php

Php array order by date

usort($array, function($a, $b) {
  return new DateTime($a['datetime']) <=> new DateTime($b['datetime']);
});

Source: stackoverflow.com

Sort a multidimensional array by date element in php

<?php

    // Declare multidimensional array
    //initialization
    $array = Array (
        Array (
            "test" => "TEST_1",
            "datetime" => "2019-02-22 11:29:45",
        ),
        Array (
            "test" => "TEST_2",
            "datetime" => "2019-02-13 11:29:45",
        ),
        Array (
            "test" => "TEST_3",
            "datetime" => "2019-02-15 11:29:45",
        )
    );

    // Comparison function
    function dtCompare($ele1, $ele2) {
        $datetime1 = strtotime($ele1['datetime']);
        $datetime2 = strtotime($ele2['datetime']);
        return $datetime1 - $datetime2;
    }

    // Sort the array
    usort($array, 'dtCompare');

    // Print the array
    print_r($array)

?>

//Output

Array
(
    [0] => Array
        (
            [test] => TEST_2
            [datetime] => 2019-02-13 11:29:45
        )

    [1] => Array
        (
            [test] => TEST_3
            [datetime] => 2019-02-15 11:29:45
        )

    [2] => Array
        (
            [test] => TEST_1
            [datetime] => 2019-02-22 11:29:45
        )

)

Source: nicesnippets.com

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