PHP开发APP接口----json,xml返回封装类


php以json或者xml 形式返回给app。明白这点就很好说了,就是把数据包装成json或者xml,返回给APP
定义抽象APP基类:
<?php/**

  • 定义API抽象类
  • /abstractclassApi {const JSON = ‘Json’;
    const XML = ‘Xml’;
    const ARR = ‘Array’;
    /**
  • 定义工厂方法
  • param string $type 返回数据类型
  • /publicstaticfunctionfactory($type = self::JSON) {$type = isset($_GET[‘format’]) ? $_GET[‘format’] : $type;
    $resultClass = ucwords($type);
    require_once(‘./Response/‘ . $type . ‘.php’);
    returnnew$resultClass();
    }

abstractfunctionresponse($code, $message, $data);
}
以xml形式返回给APP:
$code, 'message' => $message, 'data' => $data); header('Content-Type:text/xml'); $xml = "\n”;
$xml .= ““;
$xml .= self::xmlToEncode($result);
$xml .= “
“;
echo$xml;
}
publicstaticfunctionxmlToEncode($result) {$xml = $attr = ‘’;
foreach($resultas$key => $value) {
//判断键值对,如果是数字键值不允许if(is_numeric($key)) {
$attr = “ id=’” . $key . “‘“;
$key = “item”;
}
$xml .= “<{$key}{$attr}>”;
//以递归形式返回,主要是因为数组在xml中显示是array,必须显示出来具体键值对$xml .= is_array($value) ? self::xmlToEncode($value) : $value;
$xml .= “</{$key}>\n”;
}
return$xml;
}
}

以json格式返回数据:
<?php/**

  • 按xml方式输出通信数据
  • /classJsonextendsApi {publicfunctionresponse($code, $message = ‘’, $data = array()) {if(!(is_numeric($code))) {
    return’’;
    }

$result = array(
‘code’ => $code,
‘message’ => $message,
‘data’ => $data);

echo json_encode($result);
exit;
}
}
也可以采用这种方式组装返回数据:
<?phpclassResponse {const JSON = “json”;
/**

  • 按综合方式输出通信数据
  • @param integer $code 状态码
  • @param string $message 提示信息
  • @param array $data 数据
  • @param string $type 数据类型
  • return string
  • /publicstaticfunctionshow($code, $message = ‘’, $data = array(), $type = self::JSON) {if(!is_numeric($code)) {
    return’’;
    }

$type = isset($_GET[‘format’]) ? $_GET[‘format’] : self::JSON;

$result = array(
‘code’ => $code,
‘message’ => $message,
‘data’ => $data,
);

if($type == ‘json’) {
self::json($code, $message, $data);
exit;
} elseif($type == ‘array’) { //适合调试代码var_dump($result);
} elseif($type == ‘xml’) {
self::xmlEncode($code, $message, $data);
exit;
} else {
// TODO}
}
/**

  • 按json方式输出通信数据
  • @param integer $code 状态码
  • @param string $message 提示信息
  • @param array $data 数据
  • return string
  • /publicstaticfunctionjson($code, $message = ‘’, $data = array()) {if(!is_numeric($code)) {
    return’’;
    }

$result = array(
‘code’ => $code,
‘message’ => $message,
‘data’ => $data);

echo json_encode($result);
exit;
}

/**

  • 按xml方式输出通信数据
  • @param integer $code 状态码
  • @param string $message 提示信息
  • @param array $data 数据
  • return string
  • /publicstaticfunctionxmlEncode($code, $message, $data = array()) {if(!is_numeric($code)) {
    return’’;
    }

$result = array(
‘code’ => $code,
‘message’ => $message,
‘data’ => $data,
);

header(“Content-Type:text/xml”);
$xml = “\n”;
$xml .= “\n”;

$xml .= self::xmlToEncode($result);

$xml .= ““;
echo$xml;
}

publicstaticfunctionxmlToEncode($data) {$xml = $attr = “”;
foreach($dataas$key => $value) {
if(is_numeric($key)) {
$attr = “ id=’{$key}’”;
$key = “item”;
}
$xml .= “<{$key}{$attr}>”;
$xml .= is_array($value) ? self::xmlToEncode($value) : $value;
$xml .= “</{$key}>\n”;
}
return$xml;
}

}


文章作者: Bob
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