Re: Array references - how to unset() ?

Robert Cummings napsal(a):

Martin Zvarík wrote:

$ARR = array( 'a' => array('b' => 'blah') ); function set($key) {

    global $ARR;

    foreach ($key as $i => $k) {
         if ($i == 0) {
                $sourcevar =& $ARR[$k];
            } else {
                $sourcevar =& $sourcevar[$k];
            }
        }

     // unset($sourcevar); // will cancel the reference - we want to unset the ['b'], but how?

$sourcevar = null; // will set it NULL, but won't unset... foreach ($ARR ... // I could run a cleanup, that would go through all of the array and unset what is NULL, but I would need to use REFERENCES again!! array_walk_recursive() is also worthless... any ideas? } set( array('a', 'b') );

unset( $ARR[$k] ) Cheers, Rob. Thanks for reply, but I want to:

unset($ARR['a']['b']) Imagine I have this: $KEYS = array('a', 'b', 'c'); And I want to: unset($ARR['a']['b']['c']) It's probably impossible, unless I do something dirty like this: list($rootA, $rootB, $rootC) = $KEYS; if (isset($rootC)) unset($x[$rootA][$rootB][$rootC]); elseif (isset($rootB)) unset($x[$rootA][$rootB]); elseif (isset($rootA)) unset($x[$rootA]);