Question

How to sort array alphabetically by using specific values in PHP

Answer 1

$array = [
    ['first_name' => 'fff', 'last_name' => 'mmm'], 
    ['first_name' => 'aaa', 'last_name' => 'yyy'], 
    ['first_name' => 'ccc', 'last_name' => 'kkk']
];

usort($array, function ($a, $b) {
    return strcmp($a['last_name'], $b['last_name']);
});

print_r($array);




/*
run:

Array
(
    [0] => Array
        (
            [first_name] => ccc
            [last_name] => kkk
        )

    [1] => Array
        (
            [first_name] => fff
            [last_name] => mmm
        )

    [2] => Array
        (
            [first_name] => aaa
            [last_name] => yyy
        )

)

*/

 

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