PHP中的get_defined_funciton和get_defined_vars

 1 <?php 
 2     $zongzi = "adfasdf";
 3     //将$zongzi作为数组的key,adfasdf作为数组的值返回
 4     $val = (get_defined_vars());    
 5     echo $val['zongzi'];
 6     
 7     
 8     function zongzi(){
 9         echo "adfads";
10     }
11     
12     $function = get_defined_functions();
13     //将自定义的函数获取,函数名作为数组的key,函数返回的结果作为值,再扔给了user
14     var_dump($function['user']);    
15     echo $function['user']['zongzi'];
16 ?>