- var_dump: documentation ( source)
- array_fill_keys: documentation ( source)
- array_keys: documentation ( source)
<?php
$players = array(1 => 2, 3=>4,5=>6);
$playersHlp = array_fill_keys(array_keys($players), (object) array('a' => 'b'));
$playersHlp[1]->a = 'c';
var_dump($playersHlp);