Create variable length array from string

Question

The string

$string = \'a.b.c.d\';

should create an array like

array(\'a\' => array(\'b\' => array( ....

I managed

Answer 1

This should work:

function create_array(&$arr,$string,$data){
    $a=explode('.',$string);
    $last=count($a)-1;
    $p=&$arr;

    foreach($a as $k=>$key){
        if ($k==$last) {
            $p[$key]=$data; 
        } else if (is_array($p)){
            $p[$key]=array();
        }
        $p=&$p[$key];
    }
}