带有数字键的stdClass的array_push

Question

I'm trying to use a function similar to array_push but for objects (stdClass) in PHP. See what I expect:

<?php
$obj = new stdClass();
$obj->a = 'foo';
$obj->{'0'} = 'far';

var_dump($obj);
// > object(stdClass)#1 (2) { ["a"]=> string(3) "foo" ["0"]=> string(3) "far" }

var_dump(object_push($obj, 'coin'));
// > object(stdClass)#1 (3) { ["a"]=> string(3) "foo" ["0"]=> string(3) "far" ["1"]=> string(4) "coin" }

Answer 1

You can use this function object_push:

function object_push($object, $value) {
    $object->{max(array_filter(array_keys((array) $object), 'is_numeric') + [-1]) + 1} = $value;
    return $object;
}

Use it then as you would use array_push:

$obj = new stdClass();
$obj->a = 'foo';
$obj->{'0'} = 'far';

var_dump($obj);
// > object(stdClass)#1 (2) { ["a"]=> string(3) "foo" ["0"]=> string(3) "far" }

var_dump(object_push($obj, 'coin'));
// > object(stdClass)#1 (3) { ["a"]=> string(3) "foo" ["0"]=> string(3) "far" ["1"]=> string(4) "coin" }

Peace