Return data formatting class instance implemented by php, php instance_PHP tutorial

Return data formatting class instance implemented by php, php instance

The example in this article describes the return data formatting class implemented by PHP and its usage, which is of great practical value in string processing. Share it with everyone for your reference. The specific method is as follows:

DataReturn.class.php class file is as follows:

<&#63;php 
/** 返回数据格式化类 
*  Date:  2011-08-15 
*  Author: fdipzone 
*/ 
 
class DataReturn{  // class start 
 
  private $type; 
  private $xmlroot; 
  private $callback; 
  private $returnData; 
 
  public function __construct($param=array()){ 
    $this->type = $this->exists($param,'type')&#63; strtoupper($param['type']) : 'JSON';   // 类型 JSON,XML,CALLBACK,ARRAY 
    $this->xmlroot = $this->exists($param,'xmlroot')&#63; $param['xmlroot'] : 'xmlroot';   // xml root dom name 
    $this->callback = $this->exists($param,'callback')&#63; $param['callback'] : '';     // JS callback function name 
 
    $format = array(); 
    $format['retcode'] = $this->exists($param,'format.retcode')&#63; $param['format']['retcode'] : 'retcode';//retcode 对应名称 
    $format['msg'] = $this->exists($param,'format.msg')&#63; $param['format']['msg'] : 'msg';        //msg 对应名称 
    $format['data'] = $this->exists($param,'format.data')&#63; $param['format']['data'] : 'data';      //data 对应名称 
 
    $result = array(); 
    $result[$format['retcode']] = $this->exists($param,'retcode')&#63; $param['retcode'] : 0; 
    $result[$format['msg']] = $this->exists($param,'msg')&#63; $param['msg'] : ''; 
    $result[$format['data']] = $this->exists($param,'data')&#63; $param['data'] : ''; 
 
    $this->returnData = $result; 
  } 
 
  //输出数据 
  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(); 
  } 
 
  //输出JSON格式数据,如有callback参数则返回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).');'; 
    } 
  } 
 
  //输出XML格式数据 
  private function xml_return(){ 
    header('content-type:text/xml;charset=utf-8'); 
    echo $this->xml_encode($this->returnData,$this->xmlroot); 
  } 
 
  //输出JSON格式数据，并调用callback方法 
  private function callback_return(){ 
    header('content-type:text/html;charset=utf-8'); 
    $this->callback = empty($this->callback)&#63; 'callback' : $this->callback; 
    echo "<script type=\"text/javascript\">\r\n"; 
    echo $this->callback."(".json_encode($this->returnData).");\r\n"; 
    echo "</script>"; 
  } 
 
  //输出数组格式数据 
  private function array_return(){ 
    header('content-type:text/html;charset=utf-8'); 
    echo '<pre class="brush:php;toolbar:false">'; 
    print_r($this->returnData); 
    echo '

'; } //XML编码 private function xml_encode($data, $root='xmlroot', $encoding='utf-8') { $xml = "<?xml version=\"1.0\" encoding=\"" . $encoding . "\"?>\n"; $xml.= "<" . $root . ">\n"; $xml.= $this->data_to_xml($data); $xml.= ""; return $xml; } //数组转XML格式 private function data_to_xml($data) { if (is_object($data)) { $data = get_object_vars($data); } $xml = ''; foreach ($data as $key => $val) { is_numeric($key) && $key = "item id=\"$key\""; $xml.="<$key>"; $xml.= ( is_array($val) || is_object($val)) ? $this->data_to_xml($val) : $this->cdata($val); list($key, ) = explode(' ', $key); $xml.="\n"; } return $xml; } //判断数据是否存在 private function exists($obj,$key=''){ if($key==''){ return isset($obj) && !empty($obj); }else{ $keys = explode('.',$key); for($i=0,$max=count($keys); $i<$max; $i++){ if(isset($obj[$keys[$i]])){ $obj = $obj[$keys[$i]]; }else{ return false; } } return isset($obj) && !empty($obj); } } //判断是否需要加上标记 private function cdata($val){ if(!empty($val) && !preg_match('/^[A-Za-z0-9+$]/',$val)){ $val = ''; } return $val; } } // class end ?>

The demo sample program is as follows:

<&#63;php 
  require_once('DataReturn.class.php'); 
  $param = array( // DataReturn 参数 
          'type'  => 'JSON', // 输出的类型 JSON,XML,CALLBACK,ARRAY 默认为 JSON 
          'retcode' => '1000', // retcode 的值，默认为0 
          'msg'   => '',   // msg 的值，默认为空 
          'data'  => array( // 要输出的数据 
                  'id'   => '100', 
                  'name'  => 'fdipzone', 
                  'gender' => 1, 
                  'age'  => 28 
                 ), 
          'format' => array( // 输出的数据key格式,默认为 retcode,msg,data 
                  'retcode' => 'status', 
                  'msg'   => 'info', 
                  'data'  => 'result' 
                 ), 
          'xmlroot' => 'xmlroot', // 当type=XML时,XML根节点名称，默认为xmlroot 
          'callback' => 'callback' /* 回调方法名称 
                          type=JSON时，默认为空，如不为空，则输出callback({data}); 
                          type=CALLBACK时,默认为callback，自动调用页面JS回调方法 
                       */ 
  ); 
  $obj = new DataReturn($param); // 创建DataReturn类对象 
  $obj->data_return();      // 按格式输出数据 
&#63;>

I hope this article will be helpful to everyone’s learning of PHP programming.

Formatting of date and time data returned by database in php

You store the timestamp in the database, and then use the date method to format the time for processing

php numerical formatting output problem

Program code:
\n";echo fmt_num(123456789 )."
\n"; function fmt_num($n){ $ s=($n % 1000).'Copper';$n=floor($n/1000); $s=($n % 1000).'Silver'.$s;$n=floor($n/1000 ); $s=($n % 100).'Gold'.$s;$n=floor($n/100); $s=($n % 100).'Diamond'.$s;$n= floor($n/100); return $s; }?>
Run the example:
E:\TEMP\File\exp>a.php
25 diamonds, 33 gold, 120 silver-296 copper< ;br>
1 diamond, 23 gold, 456 silver, 789 copper


Can you understand the code? I have defined a function, and you can modify the return format of the function as needed.

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