Home > Article > Backend Development > Return data formatting class example implemented by PHP_PHP tutorial
Return data formatting class example implemented by PHP_PHP tutorial
- WBOYOriginal
- 2016-07-13 10:18:44905browse
Example of return data formatting class implemented by php
The DataReturn.class.php class file is as follows:
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 |
/**Return data formatting class * 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')? strtoupper($param['type']) : 'JSON'; // Type 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 corresponding name $format['msg'] = $this->exists($param,'format.msg')? $param['format']['msg'] : 'msg'; //msg 对应名称 $format['data'] = $this->exists($param,'format.data')? $param['format']['data'] : 'data'; //data 对应名称
$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 = $result; }
//输出数据 public function data_return(){ ob_clean(); switch($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)? 'callback' : $this->callback; echo ""; }
//输出数组格式数据 private function array_return(){ header('content-type:text/html;charset=utf-8'); echo ' '; </p>
<p> print_r($this->returnData); </p>
<p> echo '';
}
//XML编码 private function xml_encode($data, $root='xmlroot', $encoding='utf-8') { $xml = "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:
|
<🎜> require_once('DataReturn.class.php'); <🎜> <🎜> $param = array( // DataReturn parameter <🎜> <🎜> 'type' => 'JSON', // The output type JSON, XML, CALLBACK, ARRAY defaults to JSON <🎜> <🎜> 'retcode' => '1000', // The value of retcode, the default is 0 <🎜> <🎜> 'msg' => '', // msg value, default is empty <🎜> <🎜> 'data' => array( // Data to be output <🎜> <🎜> 'id' => '100', <🎜> <🎜> 'name' => 'fdipzone', <🎜> <🎜> 'gender' => 1, 'age' => 28 ), ‘format’ => array( // Output data key format, default is retcode,msg,data 'retcode' => 'status', 'msg' => 'info', 'data' => 'result' ), 'xmlroot' => 'xmlroot', // When type=XML, the name of the XML root node, the default is xmlroot 'callback' => 'callback' /* callback method name When type=JSON, the default is empty. If it is not empty, callback({data}) is output; When type=CALLBACK, the default is callback, which automatically calls the page JS callback method ); $obj = new DataReturn($param); // Create DataReturn class object $obj->data_return(); // Output data according to format ?> |