- array_map: documentation ( source)
- var_dump: documentation ( source)
- json_encode: documentation ( source)
<?php
$a = array_map(function ($a) {
return json_encode($a);
}, [
'a' => 'b',
'c' => ['a' => 'b', 'c' => new DateTimeImmutable()],
]);
var_dump($a);