Trying not to reinvent the wheel. Is there a function around that does this?

Loops through a form and pulls out all input/selection drop-downs/etc and places their name and value into an array? I can build it but don't want to spend the 2-3 hours (maybe more?) doing it if it already exists. Anyone seen such a function?

$html = file_get_contents('http://www.website_with_a_big_form.com/index.php');

$form = getFormElements($html);

print_r($form);

/* Output:
array(
'inputName1'=>'inputValue1',
'inputName2'=>'inputValue2',
'inputName3'=>'inputValue3',
'inputName4'=>'inputValue4',
'inputName5'=>'inputValue5'
)
*/

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Well I went ahead and built the first part, so far it only does inputs. I will make it do selects and textareas tomorrow. (I also have to make it work when there are spaces between the equal sign)

function getStringBetween($string, $start, $end){ 
	    $string = " ".$string; 
	    $ini = strpos($string,$start); 
	    if ($ini == 0) return ""; 
	    $ini += strlen($start); 
	    $len = strpos($string,$end,$ini) - $ini; 
	    return substr($string,$ini,$len); 
	}

function getFormElements($html){
		$formTags = array(
		1=>array('start'=>'<input','end'=>'>'),
		2=>array('start'=>'<select>','end'=>'</select>'),
		3=>array('start'=>'<textarea>','end'=>'</textarea>')
		);
		$sourceHtml = $html;
		foreach($formTags as $formTag){
			$html = $sourceHtml;
			if($formTag['start'] == '<input'){
				while(($startPosition = strpos($html, $formTag['start'])) > 0){
					$input = $this->getStringBetween($html,$formTag['start'],$formTag['end']);
					$explodedTag = explode(' ',trim($input));
					ksort($explodedTag);
					foreach($explodedTag as $tag){
						$capsule = $tag[strlen($tag)-1];
						$attrValue = explode('=',$tag);
						if($attrValue[0]=='name'){
							$key = $this->getStringBetween($attrValue[1],$capsule,$capsule);
						}
						if($attrValue[0]=='value'){
							$value = $this->getStringBetween($attrValue[1],$capsule,$capsule);
							$form[$key] = $value;
							$html = substr($html,strpos($input)+strlen($input));
							break;
						}
					}
				}
			}
		}
	}

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