url query php

gistfile1.php

function url_query(){
        	
        	$this->autoRender = false;

        	extract($this->params['named']);

        	$model = ClassRegistry::init($model);

        	if($conditions) $options['conditions'] = $conditions;
        	if($contain) $options['contain'] = explode(' ',$contain);
        	if($limit) $options['limit'] = $limit;
        	
        	$result =  $model->find($find,$options);
        	
        	if($resource == 'json'){
        		header('Content-Type: application/json');
        		return json_encode($result); 
        	}

        	return $result;
   }