ID: 49097 User updated by: mkrasuski at infico dot pl Reported By: mkrasuski at infico dot pl Status: Bogus Bug Type: Output Control Operating System: Windows 7/XP PHP Version: 5.3.0 New Comment:
Ok about string. But what about casting to bool (same problem). Previous Comments: ------------------------------------------------------------------------ [2009-07-29 11:56:20] [email protected] false has to be an empty string to correctly evaluate to false. No bug here. ------------------------------------------------------------------------ [2009-07-29 11:51:24] mkrasuski at infico dot pl You missunderstood me. The cast of a bool(false) is "" but cast of a bool(true) is "1". IMO it should be "false" and "true", or, at least "0" and "1".) ------------------------------------------------------------------------ [2009-07-29 11:38:31] [email protected] All works here, the cast of a bool to string is "". <?php $b = 2; var_dump((!$b)); echo PHP_EOL; var_dump((string) !$b); echo PHP_EOL; var_dump((bool) !$b); echo PHP_EOL; var_dump((int) !$b); echo PHP_EOL; var_dump(((bool) $b)); echo PHP_EOL; var_dump(!$b); Output: bool(false) string(0) "" bool(false) int(0) bool(true) bool(false) ------------------------------------------------------------------------ [2009-07-29 10:31:21] mkrasuski at infico dot pl Description: ------------ I think, there's a problem with type casting -- to be more specific, with boolean casting. When I was trying to print result of the condition (should be true, or false) I received some unexpected output. Reproduce code: --------------- <?php $b = 2; echo 'Should be false: ' . (!$b); echo '<br />'; echo (string) !$b; echo '<br />'; echo (bool) !$b; echo '<br />'; echo (int) !$b; echo '<br />'; echo 'Should be true: ' . ((bool) $b); echo '<br />'; var_dump(!$b); ?> Expected result: ---------------- Should be false: false false // or 0? false 0 Should be true: true bool(false) Actual result: -------------- Should be false: 0 Should be true: 1 bool(false) ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=49097&edit=1
