Working with arrays

// example function call - parse the $_POST array
echo parse_arrays($_POST,'parseArray','','parseValues');

/*
Function: parse_arrays
vars are:
	$arr 						- array to parse
	$fn_array				- function to run when the value is an array. Always passed the var $val
	$fn_array_attr	- additional variables to be passed to $fn_array
	$fn_values			= function to run when the value is not an array. Always passed the vars $key and $val
	$fn_values_attr	- additional variables to be passed to $fn_values
	$wrapper				- not used here. Could be used to wrap the results
	$cycle					- not used here. Could be used to see which 'dimension' of the array you are in.

*/
function parse_arrays($arr, $fn_array, $fn_array_attr, $fn_values, $fn_value_attr, $wrapper = 'data', $cycle = 1)
{	
	foreach($arr as $key => $val)
	{
		//if it's not an array
		if(!is_array($val))
		{
			if (function_exists($fn_values))
			{
				$output .= $fn_values($key, $val, $fn_array_attr);
			} else 
			{
				$output .= $fn_values . 'does not exist<br/>';
			}
		}
		//if it is an array
		else
		{
			if (function_exists($fn_array))
			{
				$output .= $fn_array($val, $fn_array_attr);
			}
			else
			{
				$output .= $fn_array . 'does not exist<br/>';
			}
			//if it is an array
			//$output.= parse_arrays($val);
			
		}
	}
	
	return $output;
}

//array is passed to this function from parse_arrays $fn_array variable
function parseArray($arr)
{
	$output  = '<pre>';
	$output .= print_r($arr, true);
	$output .= '</pre>';
	
	return $output;
}

//key and value is passed to this function from parse_arrays $fn_values variable
function parseValues($key, $val)
{
	$output = $key .': '. $val .'<br/>';
	return $output;
}

?>