- print_r: documentation ( source)
<?php
$a = [0 => 1, 1=>3, 2=> 6];
print_r($a);
$o = new stdClass();
foreach($a as $key => $value){
$o->$key = $value;
}
$a = (array)$o;
print_r($a);
foreach ($a as $key => $id) {
unset($a[$key]);
}
print_r($a);