DataReturn.class.php
type = $this->exists($param,'type')? strtoupper($param['type']) : 'JSON'; // 類型 JSON,XML,CALLBACK,ARRAY
$this->xmlroot = $this->exists($param,'xmlroot')? $param['xmlroot'] : 'xmlroot'; // xml root dom name
$this->callback = $this->exists($param,'callback')? $param['callback'] : ''; // JS callback function name
$format = array();
$format['retcode'] = $this->exists($param,'format.retcode')? $param['format']['retcode'] : 'retcode';//retcode 對應名稱
$format['msg'] = $this->exists($param,'format.msg')? $param['format']['msg'] : 'msg'; //msg 對應名稱
$format['data'] = $this->exists($param,'format.data')? $param['format']['data'] : 'data'; //data 對應名稱
$result = array();
$result[$format['retcode']] = $this->exists($param,'retcode')? $param['retcode'] : 0;
$result[$format['msg']] = $this->exists($param,'msg')? $param['msg'] : '';
$result[$format['data']] = $this->exists($param,'data')? $param['data'] : '';
$this->returnData = $result;
}
//輸出數據
public function data_return(){
ob_clean();
switch($this->type){
case 'JSON':
$this->json_return();
break;
case 'XML':
$this->xml_return();
break;
case 'CALLBACK':
$this->callback_return();
break;
case 'ARRAY':
$this->array_return();
break;
default:
$this->json_return();
}
exit();
}
//輸出JSON格式數據,如有callback參數則返回JSONP格式
private function json_return(){
header('content-type:text/html;charset=utf-8');
if(empty($this->callback)){
echo json_encode($this->returnData);
}else{
echo $this->callback.'('.json_encode($this->returnData).');';
}
}
//輸出XML格式數據
private function xml_return(){
header('content-type:text/xml;charset=utf-8');
echo $this->xml_encode($this->returnData,$this->xmlroot);
}
//輸出JSON格式數據，并調用callback方法
private function callback_return(){
header('content-type:text/html;charset=utf-8');
$this->callback = empty($this->callback)? 'callback' : $this->callback;
echo "";
}
//輸出數組格式數據
private function array_return(){
header('content-type:text/html;charset=utf-8');
echo '';
print_r($this->returnData);
echo '
';
}
//XML編碼
private function xml_encode($data, $root='xmlroot', $encoding='utf-8') {
$xml = "\n";
$xml.= "\n";
$xml.= $this->data_to_xml($data);
$xml.= "" . $root . ">";
return $xml;
}
//數組轉XML格式
private function data_to_xml($data) {
if (is_object($data)) {
$data = get_object_vars($data);
}
$xml = '';
foreach ($data as $key => $val) {
is_numeric($key) && $key = "item id=\"$key\"";
$xml.="";
$xml.= ( is_array($val) || is_object($val)) ? $this->data_to_xml($val) : $this->cdata($val);
list($key, ) = explode(' ', $key);
$xml.="$key>\n";
}
return $xml;
}
//判斷數據是否存在
private function exists($obj,$key=''){
if($key==''){
return isset($obj) && !empty($obj);
}else{
$keys = explode('.',$key);
for($i=0,$max=count($keys); $i標記
private function cdata($val){
if(!empty($val) && !preg_match('/^[A-Za-z0-9+$]/',$val)){
$val = '';
}
return $val;
}
} // class end
?>demo
'JSON', // 輸出的類型 JSON,XML,CALLBACK,ARRAY 默認為 JSON
'retcode' => '1000', // retcode 的值，默認為0
'msg' => '', // msg 的值，默認為空
'data' => array( // 要輸出的數據
'id' => '100',
'name' => 'fdipzone',
'gender' => 1,
'age' => 28
),
'format' => array(// 輸出的數據key格式,默認為 retcode,msg,data
'retcode' => 'status',
'msg' => 'info',
'data' => 'result'
),
'xmlroot' => 'xmlroot', // 當type=XML時,XML根節點名稱，默認為xmlroot
'callback' => 'callback' /* 回調方法名稱
type=JSON時，默認為空，如不為空，則輸出callback({data});
type=CALLBACK時,默認為callback，自動調用頁面JS回調方法
*/
);
$obj = new DataReturn($param); // 創建DataReturn類對象
$obj->data_return(); // 按格式輸出數據
?>本文讲解了php返回数据格式化类，更多相关内容请关注php中文网。
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