如题,PHP如何自动识别第三方Restful API的内容,自动渲染成 json、xml、html、serialize、csv、PHP等数据?
其实这也不难,因为Rest API也是基于http协议的,只要我们按照协议走,就能做到自动化识别 API 的内容,方法如下:
1、API服务端要返回明确的 http Content-Type头信息,如:
2、PHP端(客户端)接收到上述头信息后,再酌情自动化处理,参考代码如下:
$response = curl_exec($ch);
// 返回的 http header 的 Content-Type 的内容
$contentType = curl_getinfo($ch,'content_type');
// 关闭请求资源
curl_close($ch);
// 结果自动格式输出
$autoDetectFormats = array(
'application/xml' => 'xml','text/xml' => 'xml','application/json' => 'json','text/json' => 'json','text/csv' => 'csv','application/csv' => 'csv','application/vnd.PHP.serialized' => 'serialize'
);
if (strpos($contentType,';'))
{
list($contentType) = explode(';',$contentType);
}
$contentType = trim($contentType);
if (array_keyexists($contentType,$autoDetectFormats))
{
echo '' . $autoDetectFormats$contentType;
}
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++
// 常用 格式化 方法
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++
/**
- 格式化xml输出
*/
function _xml($string)
{
return $string ? (array)simplexml_load_string($string,'SimpleXMLElement',LIBXML_NOCDATA) : array();
}
/**
- 格式化csv输出
*/
function _csv($string)
{
$data = array();
$rows = explode("\n",trim($string));
$headings = explode(',',array_shift($rows));
foreach( $rows as $row )
{
// 利用 substr 去掉 开始 与 结尾 的 "
$data_fields = explode('","',trim(substr($row,1,-1)));
if (count($data_fields) === count($headings))
{
$data[] = array_combine($headings,$data_fields);
}
}
return $data;
}
/**
- 格式化json输出
*/
function _json($string)
{
return json_decode(trim($string),true);
}
/**
- 反序列化输出
*/
function _serialize($string)
{
return unserialize(trim($string));
}
/**
- 执行PHP脚本输出
*/
function _PHP($string)
{
$string = trim($string);
$populated = array();
eval("\$populated = \"$string\";");
return $populated;
}