A simple php custom exception class

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Release: 2016-07-25 09:03:59
Original
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  1. /**

  2. * Customize an exception handling class
  3. */
  4. class MyException extends Exception
  5. {
  6. // Redefine the constructor to make message a property that must be specified
  7. public function __construct ($message, $code = 0) {
  8. // Customized code
  9. // Make sure all variables are assigned correctly
  10. parent::__construct($message, $code);
  11. }
  12. // Customized string output Style
  13. public function __toString() {
  14. return __CLASS__ . ": [{$this->code}]: {$this->message}n";
  15. }
  16. }

  17. * Create a class for testing exception handling mechanism
  18. */
  19. class TestException
  20. {
  21. function __construct($str) {
  22. if($str == 1)
  23. throw new MyException('The parameter cannot be 1',1);
  24. elseif( $str == 2)
  25. throw new MyException('The parameter cannot be 2',2);//Throw 2 exceptions
  26. else
  27. echo $str;
  28. }
  29. }

  30. try {

  31. $o = new TestException(2);
  32. } catch (MyException $e) { // Catch exception
  33. echo $e;
  34. }
  35. ?>

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