require_once的特性

$conf=require_once ‘conf.php‘;
   
 function get_config($key){  
    //$conf=require_once ‘conf.php‘;  不可取
   //  $config = call_user_func( function() { return require_once ‘conf.php‘; }); 匿名也不可取
  global $conf;
    return $conf[$key];
  }
echo get_Config(‘name‘);
 
echo get_Config(‘age‘);





conf.php文件
return $config=array(
                ‘name‘=>‘hk‘,
                ‘age‘=>‘22‘
               );