From: Operating system: Linux PHP version: 5.3.12 Package: Class/Object related Bug Type: Bug Bug description:Restraining __constructor() access level in subclass gives a fatal error
Description: ------------ Restraining the __construct() method un a subtype gives a Fatal error. As stated in the following resources, the LSP should not apply here. - https://bugs.php.net/bug.php?id=40880 - http://stackoverflow.com/questions/5490824/should-constructors-comply-with-the-liskov-substitution-principle - http://ralphschindler.com/2012/03/09/php-constructor-best-practices-and-the-prototype-pattern Test script: --------------- <?php class Foo { public function __construct(){} } class Bar extends Foo { protected function __construct(){} } Expected result: ---------------- No output at all. Actual result: -------------- > PHP Fatal error: Access level to Bar::__construct() must be public (as in class Foo) in /tmp/bug.php on line 9 > Fatal error: Access level to Bar::__construct() must be public (as in class Foo) in /tmp/bug.php on line 9 -- Edit bug report at https://bugs.php.net/bug.php?id=61970&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=61970&r=trysnapshot54 Try a snapshot (PHP 5.3): https://bugs.php.net/fix.php?id=61970&r=trysnapshot53 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=61970&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=61970&r=fixed Fixed in SVN and need be documented: https://bugs.php.net/fix.php?id=61970&r=needdocs Fixed in release: https://bugs.php.net/fix.php?id=61970&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=61970&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=61970&r=needscript Try newer version: https://bugs.php.net/fix.php?id=61970&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=61970&r=support Expected behavior: https://bugs.php.net/fix.php?id=61970&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=61970&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=61970&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=61970&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=61970&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=61970&r=dst IIS Stability: https://bugs.php.net/fix.php?id=61970&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=61970&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=61970&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=61970&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=61970&r=mysqlcfg