Source Code for Me (s-c.me)

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1. class error_class{
2.     private $err=false;
3.  
4.     public function set_err($msg=''){
5.         $this->err=$msg;
6.     }
7.  
8.     public function clear_err(){
9.         $this->err=false;
10.     }
11.  
12.     public function is_err(){
13.         return $this->err;
14.     }
15. }
16.  
17. class test_class{
18.     public $err;
19.  
20.     public function __construct(){
21.         $this->err = new error_class();
22.     }
23.  
24.     public function some_method(){
25.         $this->err->clear_err();
26.         if(some_err){
27.             $this->err->set_err($msg='Some error appear.');
28.             return false;
29.         }
30.         return true;
31.     }
32.  
33.     public function complex_method(){
34.         $this->err->clear_err();
35.         $this->some_method();
36.         if($this->err->is_err()!==false){
37.             return false;
38.         }
39.         return true;
40.     }
41. }
42.  
43. define('some_err',true);
44. $test_instance = new test_class;
45. $test_instance->complex_method();
46. if($test_instance->err->is_err()!==false){
47.     die($test_instance->err->is_err());
48. }
49. die('No error appear.');
50.  
51.