#31086 [NEW]: Type hinting in constructor crashes php

From: junkmail at konvergencia dot hu Operating system: FreeBSD 4.10 PHP version: 5.0.2 PHP Bug Type: Class/Object related Bug description: Type hinting in constructor crashes php Description: ------------ If class B's constructor is defined as __construct(A $anObject), calling new B(new A) without taking the return value causes a crash (SIGBUS). Not using type hinting or assigning the result to a variable seems to work around the problem. E.g. $tmp = new B(new A()) does not produce the crash. Reproduce code: --------------- <?php Class A { function __construct(){} } Class B { function __construct(A $a){} } new B(new A()); echo 'OK'; ?> Expected result: ---------------- A simple OK would be nice ;) Actual result: -------------- Program terminated with signal 10, Bus error. (gdb) bt #0 zend_std_object_get_class (object=0x84591cc) at /usr/local/src/php-5.0.2/Zend/zend_object_handlers.c:905 #1 0x81b66dd in zend_get_class_entry (zobject=0x84591cc) at /usr/local/src/php-5.0.2/Zend/zend_API.c:205 #2 0x81e9d5b in zend_recv_handler (execute_data=0xbfbfe094, opline=0x8443e58, op_array=0x83a6c0c) at /usr/local/src/php-5.0.2/Zend/zend_execute.c:345 #3 0x81d0805 in execute (op_array=0x83a6c0c) at /usr/local/src/php-5.0.2/Zend/zend_execute.c:1400 #4 0x81e8193 in zend_do_fcall_common_helper (execute_data=0xbfbfe254, opline=0x845a39c, op_array=0x83a660c) at /usr/local/src/php-5.0.2/Zend/zend_execute.c:2740 #5 0x81e84ed in zend_do_fcall_by_name_handler (execute_data=0xbfbfe254, opline=0x845a39c, op_array=0x83a660c) at /usr/local/src/php-5.0.2/Zend/zend_execute.c:2825 #6 0x81d0805 in execute (op_array=0x83a660c) at /usr/local/src/php-5.0.2/Zend/zend_execute.c:1400 #7 0x81b6195 in zend_execute_scripts (type=8, retval=0x0, file_count=3) at /usr/local/src/php-5.0.2/Zend/zend.c:1060 #8 0x8187dbb in php_execute_script (primary_file=0xbfbff8d0) at /usr/local/src/php-5.0.2/main/main.c:1629 #9 0x81f1120 in main (argc=2, argv=0xbfbff948) at /usr/local/src/php-5.0.2/sapi/cgi/cgi_main.c:1568 (gdb) print zobj $1 = (zend_object *) 0xffffffff -- Edit bug report at http://bugs.php.net/?id=31086&edit=1 -- Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=31086&r=trysnapshot4 Try a CVS snapshot (php5.0): http://bugs.php.net/fix.php?id=31086&r=trysnapshot50 Try a CVS snapshot (php5.1): http://bugs.php.net/fix.php?id=31086&r=trysnapshot51 Fixed in CVS: http://bugs.php.net/fix.php?id=31086&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=31086&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=31086&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=31086&r=needscript Try newer version: http://bugs.php.net/fix.php?id=31086&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=31086&r=support Expected behavior: http://bugs.php.net/fix.php?id=31086&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=31086&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=31086&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=31086&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=31086&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=31086&r=dst IIS Stability: http://bugs.php.net/fix.php?id=31086&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=31086&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=31086&r=float MySQL Configuration Error: http://bugs.php.net/fix.php?id=31086&r=mysqlcfg