Moving array element to top in PHP

Question

$arr = array(
    \'a1\'=>\'1\',
    \'a2\'=>\'2\'
);

I need to move the a2 to the top, as well as keep the a2 as a key how woul

Answer 1

You can achieve that this way:

$arr = array(
    'a1'=>'1',
    'a2'=>'2'
);

end($arr);

$last_key     = key($arr);
$last_value   = array_pop($arr);
$arr          = array_merge(array($last_key => $last_value), $arr);

/*
    print_r($arr);

    will output (this is tested):
    Array ( [a2] => 2 [a1] => 1 )
*/