post 方式提交数据

   public function getPrice($data) {
	   	$url='http://www.xxx.com/templates/common/products/productProperties.cfm';
	   	$timestamp = time();
	   	$uniqueId = $data['product_id'].'33';
	   	
	   	$post='noCache='.$timestamp.
	   	'&buyForm'.$uniqueId.'_productId='.$data['product_id'].
	   	'&buyForm'.$uniqueId.'_uniqueId='.$uniqueId;
	    foreach ($data['option'] as $option) {
	    	$post .= ('&buyForm'.$uniqueId.'_options='.$option['option_id']);
	    	$post .= ('&buyForm'.$uniqueId.'_optionValue'.$option['option_id'].'='.$option['option_value_id']);
	    }
	    $post .= '&buyForm'.$uniqueId.'_quantity=1&id='.$uniqueId;
	   	
	   	 
	   	$post = $this->shanchu($post);
	   	 
	   	$context['http'] = array
	   	(
	   			'method' => 'POST',
	   			'header'  => 'Content-type: application/x-www-form-urlencoded',
	   			'content' => $post,
	   	);
	   	
	   	$result=file_get_contents($url,false,stream_context_create($context));
	   	$arr = json_decode($result,true);
	   	return $arr[0]['PRICES']['BASEPRICE']['INTEGER'];
   }