<?php
// Class Element simplifiée 
class Element 
{
	var $name;
	
	function Element($name) 
	{
		$this->name	= $name;
	}
	
	function getName() 
	{
		return $this->name;
	}
	
	
	function cleanTab(&$value) 
	{
		if ($I_pos = strpos($value, ']')) {
			$value	= substr($value, 0, $I_pos);
		}
	}
	
	function _findValue(&$values)
    {
        if (empty($values)) {
            return null;
        }
        $elementName = $this->getName();
        if (isset($values[$elementName])) {
            return $values[$elementName];
        } elseif (strpos($elementName, '[')) {
            $myVar = "['" . str_replace(array(']', '['), array('', "']['"), $elementName) . "']";
            return eval("return (isset(\$values$myVar)) ? \$values$myVar : null;");
        } else {
            return null;
        }
    }
}


// classe Element Sans Eval
class ElementSansEval 
{
	var $name;
	
	function ElementSansEval($name) 
	{
		$this->name	= $name;
	}
	
	
	function getName() 
	{
		return $this->name;
	}
	
	
	function _findValue(&$values)
    {
        if (empty($values)) {
            return null;
        }
		preg_match_all('/([^\[|\]]+)/', $this->getName(), $A_element);
        $return	= $values;
        // boucle sur la liste  des "elements"
        foreach ($A_element[0] as $S_element) {
        	// si l'element existe dans le tableau tmp
			if (isset($return[$S_element])) {
				$return	= $return[$S_element];
			} else {
				$return	= null;
				break;
			}
        }
        return $return;
    }
}


// ---- TESTS
	
$values	= 
	array(
		'tutu' => array(
			'toto' => array(
				1 => '0000-0000-0000-0000'
			),
		'titi' => array(
			'tata' => array(
			2 => 'EEEE-EEEE-EEEE-EEEE')))
	);
	
	// tutu[toto][1]
$elementSansEval	= new ElementSansEval('tutu[toto][tata]');
$element			= new Element('tutu[toto][tata]');


require_once 'Benchmark/Iterate.php';

$benchSansEval 	= new Benchmark_Iterate();
$benchSansEval->run(1000, 'elementSansEval->_findValue', $values);
$resultSansEval	= $benchSansEval->get();

$bench			= new Benchmark_Iterate();
$bench->run(1000, 'element->_findValue', $values);
$result 		= $bench->get();

echo "SANS Eval mean : {$resultSansEval{'mean'}}<br />\n";
echo "AVEC Eval mean : {$result{'mean'}}<br />\n";
?>