Re: Get recursive array

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Bruno B B Magalhães wrote:
Hi guys..

well I have a little "problem", I succeeded on retrieving a value by it's key, but I want a clean and faster method... Let me explain:

I have the following function which I use to set variables in my framework like (configs, requests, etc)...


/***********************************************************************
* @function_name set_vars
* @function_type Method
* @function_input None
* @function_description None
***********************************************************************/
function set_var($key = '', $value = null)
{
    if(is_array($key))
    {
        if(count($key))
        {
            foreach($key as $key_key => $key_value)
            {
                $this->vars[$key_key] = $key_value;
            }
        }
    }
    elseif(is_array($value))
    {
        if(count($value))
        {
            foreach($value as $value_key => $value_value)
            {
                $this->vars[$key][$value_key] = $value_value;
            }
        }
    }
    else
    {
        $this->vars[$key] = $value;
    }
}

For example I have:

$this->vars['config']['database_type'] = 'mysql'; or...
$this->vars['http']['get'] = 'b';

But now I want a function that gets those values and subvalues, but there is one small catch, I need to dynamically get parsed arguments and check if key exists and returns it... I tried func_num_args, and func_get_args, without success.


I don't really have a clue as to what you want to do - but I took a guess.
maybe the following is along the lines of what you are looking to do?

the idea is that if you had a VarCollection object with the following:

	$obj->vars['a']['b']['c']['d']['e'] = 'ABCDE';

you could output the value 'ABCDE' by doing this:

	echo $obj->get_var('a','b','c','d','e');

the example below is not tested (mostly because I don't know
what I should have tested exactly but also because I have sloth
tendencies ;-)

class VarCollection
{
	var $vars;
	
	function VarCollection()
	{
		$this->vars = array();
	}

	function set_var($key = '', $value = null) { /* bla */ }
	function get_var()
	{
		$args = func_get_args();
		if (empty($args)) {
			return null;
		}

		$varRef =& $this->vars;
		while ($arg = array_shift($args)) {
			if (!isset($varRef[ $arg ])) {
				return null;
			} else {
				$varRef =& $varRef[ $arg ];
			}
		}

		return ($xyz = $varRef); // xyz because I'm paranoid about references
	}
}


Any ideas?

once, it involved Britney Spears, a 7.5 ton truck and 1000
gallons of ... oh wait you meant something else.

;-)



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