Bug #69876 [Fbk]: scalar typehint crash if default value is not related type

Edit report at https://bugs.php.net/bug.php?id=69876&edit=1 ID: 69876 Updated by: kalle@php.net Reported by: dams@php.net Summary: scalar typehint crash if default value is not related type Status: Feedback Type: Bug Package: Reproducible crash Operating System: OSX & Debian PHP Version: 7.0.0alpha1 Block user comment: N Private report: N New Comment: Thank you for this bug report. To properly diagnose the problem, we need a backtrace to see what is happening behind the scenes. To find out how to generate a backtrace, please read http://bugs.php.net/bugs-generating-backtrace.php for *NIX and http://bugs.php.net/bugs-generating-backtrace-win32.php for Win32 Once you have generated a backtrace, please submit it to this bug report and change the status back to "Open". Thank you for helping us make PHP better. C:\dev\php-src>cat .git/refs/heads/master 89fda08473dd7df85b30cbdd7c9e6e1a1d516b90 C:\dev\php-src>php -v PHP 7.0.0-dev (cli) (built: Jun 20 2015 00:43:44) Copyright (c) 1997-2015 The PHP Group Zend Engine v3.0.0-dev, Copyright (c) 1998-2015 Zend Technologies C:\dev\php-src>php -r "function a(int $a = 1.2) {}" Fatal error: Default value for parameters with a integer type hint can only be integer or NULL in Command line code on line 1 Previous Comments: ------------------------------------------------------------------------ [2015-06-19 02:27:15] laruence@php.net Please try using this snapshot: http://snaps.php.net/php-trunk-latest.tar.gz For Windows: http://windows.php.net/snapshots/ ------------------------------------------------------------------------ [2015-06-18 20:04:48] cmb@php.net I can't reproduce on Ubuntu (same rev: d9d1948) either. I get: | Fatal error: Default value for parameters with a integer type | hint can only be integer or NULL in %s on line %d | Errors parsing %s ------------------------------------------------------------------------ [2015-06-18 16:19:46] cmb@php.net Related to bug #69767 which is supposed to have been fixed. I can't reproduce the issue on Windows with this very rev. ------------------------------------------------------------------------ [2015-06-18 15:47:12] dams@php.net Description: ------------ With the new scalar typehint, when providing a default value with another type, PHP crashes. function a(int $a = 1.2) {} $a is supposed to be an integer, and the provided default value is a float. I checked this on the last rev of php-src (d9d1948396285583a915018fe9310fad998876ca, Thu Jun 18 17:22:22 2015 +0200), both on Debian 8 and Osx 10.10 Test script: --------------- <?php function a(int $a = 1.2) {} // sh: line 1: 49762 Segmentation fault: 11 php70 -l sth.php 2>&1 // Will also crash with the following : /* function a(int $a = true) {} function a(int $a = "3") {} function a(int $a = array()) {} function a(string $a = 1.2) {} function a(string $a = true) {} function a(string $a = array()) {} function a(string $a = 4) {} function a(string $a = -1) {} function a(float $a = true) {} function a(float $a = "3") {} function a(float $a = array()) {} function a(float $a = 4) {} function a(float $a = -1) {} function a(bool $a = 1.2) {} function a(bool $a = "3") {} function a(bool $a = array()) {} function a(bool $a = 4) {} function a(bool $a = -1) {} */ ?> Expected result: ---------------- Don't crash. Emit an error message at linting time to prevent such error. Actual result: -------------- => sh: line 1: 49762 Segmentation fault: 11 php70 -l sth.php 2>&1 ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=69876&edit=1