JSONの受信に関する問題

$arrayData = array("name" => "Hagrid", "age" => "36");<br />
$sendJsonData = json_encode($arrayData);<br />
$ch = curl_init('http://127.0.0.1/jietu/test.php');<br />
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");<br />
curl_setopt($ch, CURLOPT_POSTFIELDS, $sendJsonData);<br />
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);<br />
curl_setopt($ch, CURLOPT_HTTPHEADER, array(<br />
		'Content-Type: application/json',<br />
		'Content-Length: ' . strlen($sendJsonData))<br />
);<br />
$ret = curl_exec($ch);<br />
if($ret == '00'){<br />
  成功了执行的代码;<br />
}elseif($ret == '11'){<br />
  登录失败<br />
}<br />