php - How to recursively create a multidimensional array?

Question

I am trying to create a multi-dimensional array whose parts are determined by a string. I'm using . as the delimiter, and each part (except for the last) should be an array
ex:

config.debug.router.strictMode = true

I want the same results as if I were to type:

$arr = array('config' => array('debug' => array('router' => array('strictMode' => true))));

This problem's really got me going in circles, any help is appreciated. Thanks!

Answer 1

I say split everything up, start with the value, and work backwards from there, each time through, wrapping what you have inside another array. Like so:

$s = 'config.debug.router.strictMode = true';
list($parts, $value) = explode(' = ', $s);

$parts = explode('.', $parts);
while($parts) {
   $value = array(array_pop($parts) => $value);
}

print_r($parts);

Definitely rewrite it so it has error checking.