php：面向对象之成员变量（数组）

一、PHP源码

 1 <?php 
 2 
 3     class DATA{
 4         public $dlt_data = "";
 5         
 6         // set value of $dlt_data by ARRAY
 7         function set_array_value($array_type)
 8         {
 9             $this->dlt_data = $array_type;
10         }
11         
12         // set value of '$DATA->dlt_data' by key and value.
13         function set_key_value($key, $value)
14         {
15             $this->dlt_data[$key]=$value;
16         }
17     }
18     
19 
20     function display_data($DATA_type)
21     {
22         foreach($DATA_type->dlt_data as $k=>$v)
23         {
24             echo $k . " => " . $v . PHP_EOL;
25         }
26     }
27     
28     
29     $DATA_object = new DATA;
30     $array_laohu = array("elem1"=>"gold", "elem2"=>"wood", 3=>"water");
31     
32     $DATA_object->set_array_value($array_laohu);
33     $DATA_object->set_key_value("elem5", "earth");
34     
35     //set value of '$DATA_object->dlt_data' by another way.
36     $DATA_object->dlt_data["elem4"] = "fire";
37     
38     display_data($DATA_object);
39     
40 ?> 

二、PHP源码的运行结果