Php sort array by subarray value

function sortByAge($a, $b) {
    return $a['age'] > $b['age'];
}
$people=[
    ["age"=>54,"first_name"=>"Bob","last_name"=>"Dillion"],
    ["age"=>22,"first_name"=>"Sarah","last_name"=>"Harvard"],
    ["age"=>31,"first_name"=>"Chuck","last_name"=>"Bartowski"]
];

usort($people, 'sortByAge'); //$people is now sorted by age (ascending)

Similar codes

0 vote138 views1 answer
$name = $name; "Robert" echo;
PHP
0 vote134 views1 answer
Symfony functional test clear session and cookies
PHP
-2 votes167 views2 answers
Carbon laravel d m y to y-m-d
PHP Laravel
14 votes180 views2 answers
Laravel change value to intger
PHP Laravel
7 votes180 views3 answers
Laravel where has
PHP Laravel
0 vote173 views1 answer
Modifier laravel migration to add a comment a column (MySQL/PostgreSQL)
PHP Laravel
5 votes163 views2 answers
Paginate relationship laravel7
PHP Laravel
1 vote165 views1 answer
Bootstrap doesn't work in laravel
PHP Laravel
22 votes193 views6 answers
Laravel where like
PHP Laravel
0 vote184 views1 answer
Get upload error codeigniter
PHP CodeIgniter