Question

Possible Duplicate:
String with array structure to Array

I have a string “db/yum/user”, and I’m trying to explode it so each element of / becomes a deeper dimension.

So the direct method of creating the data variable would be

$config['db']['yum']['user'] = "val";

My attempt so far:

$config = array();              
  function set_config($key,$value){
global $config;

        //Multi deminsional config
        $multi_configs = explode('/',$key);
        if($multi_configs!==false){
            $build_up = array();
            $c =& $build_up;

            foreach($multi_configs as $multi_config){
                $c[$multi_config] = array();
                $c     =& $c[$multi_config];
            }
            //$c = $value;
            array_merge($config,$c);
            return;
        }


        $config[$key] = $value;
    }
               set_config('db/yum/user','val');
               set_config('db/yum/server','val2');
                //etc,etc,etc, this was modified to make more sense in this context.

Answer 1

This is probably what you are looking for:

#!/usr/bin/php
<?php

$config = array();

function set_config($key, $value) {
  global $config;

  if (FALSE=== ($levels=explode('/',$key)))
    return;

  $pointer = &$config;
  for ($i=0; $i<sizeof($levels); $i++) {
    if (!isset($pointer[$levels[$i]]))
      $pointer[$levels[$i]]=array();
    $pointer=&$pointer[$levels[$i]];
  } // for

  $pointer=$value;
} // set_config

set_config('db/yum/user','val');
set_config('db/yum/server','val2');

print_r($config);

?>

The output is:

Array
(
    [db] => Array
        (
            [yum] => Array
                (
                    [user] => val
                    [server] => val2
                )

        )

)