How to get array value dynamically

Question

I'm not sure if there is such a function, but I'd expect it to do the following: get_array_value($array, $chain); where $array is the array to search for the value, and $chain is an array that contains information which value to retrieve.

Example usage: if $chain = array('key1', 'key2', 'key3');, then the function should return $array['key1']['key2']['key3'];

Is there anything similar out there already and if not, how could I achieve this?

Thanks in advance!

UPDATE:

Huh, the intended result should be a single value, not an array. So I could use it like echo get_array_value($array, $chain);

Gaurav · Accepted Answer · 2011-05-02 11:11:13Z

5

$cloneArray = $array;  // clone it for future usage
foreach($chain as $value)
{
   $cloneArray =  $cloneArray[$value];
}

var_dump($cloneArray);

answered May 2, 2011 at 11:11

Gaurav

28.8k9 gold badges54 silver badges81 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

KingCrunch · Accepted Answer · 2011-05-02 11:11:52Z

3

function resolve ($array, $chain) {
    return empty($chain) 
        ? $array;
        :resolve($array[array_shift($chain)], $chain);
}

Thats the very short form. You must verify, that all keys, that you want to resolve, exists (and such).

answered May 2, 2011 at 11:11

KingCrunch

133k22 gold badges158 silver badges174 bronze badges

Collectives™ on Stack Overflow

How to get array value dynamically

UPDATE:

2 Answers 2

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

UPDATE:

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related