php POST的提交

		$ch = curl_init($url);
		curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
		curl_setopt($ch, CURLOPT_POSTFIELDS,$data_string);
		curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
		curl_setopt($ch, CURLOPT_HTTPHEADER, array(
			'Content-Type: application/json',
			'Content-Length: ' . strlen($data_string))
		);
		$result = curl_exec($ch);
		
		
		curl_close($ch);
		return json_decode($result,true);