ID: 41113 Updated by: [EMAIL PROTECTED] Reported By: [EMAIL PROTECTED] Status: Assigned Bug Type: Scripting Engine problem Operating System: Linux PHP Version: 5CVS-2007-04-17 (CVS) Assigned To: dmitry New Comment:
The problem is clear but unfixable. $a[0] is compiled into ZEND_FETCH_DIM_R that increments reference count of $a[0] this reference should be decremented back on $a[0] usage, but because of exception this statement is never reached. Previous Comments: ------------------------------------------------------------------------ [2007-04-17 08:14:59] [EMAIL PROTECTED] Description: ------------ The code below causes two small memleaks. Reproduce code: --------------- <?php function err($errno, $errstr, $errfile, $errline) { throw new Exception($errstr); } set_error_handler("err"); function foo() { $a = array("aaa"); foreach ($a as $o) { //$this->prop[$a] = foo($undef2); //no leak //$this->prop["aa"] = foo($undef2); //no leak $this->prop[$a[0]] = foo($undef2); //leak } } try { foo(); } catch (Exception $e) { var_dump($e->getMessage()); } ?> Actual result: -------------- ==10584== 4 bytes in 1 blocks are indirectly lost in loss record 1 of 2 ==10584== at 0x401C6CE: malloc (vg_replace_malloc.c:149) ==10584== by 0x82995DF: _emalloc (zend_alloc.c:2231) ==10584== by 0x8299885: _estrndup (zend_alloc.c:2353) ==10584== by 0x82B210F: _zval_copy_ctor_func (zend_variables.c:120) ==10584== by 0x831694C: _zval_copy_ctor (zend_variables.h:45) ==10584== by 0x82D9FAB: ZEND_ADD_ARRAY_ELEMENT_SPEC_CONST_UNUSED_HANDLER (zend_vm_execute.h:3562) ==10584== by 0x82DA140: ZEND_INIT_ARRAY_SPEC_CONST_UNUSED_HANDLER (zend_vm_execute.h:3609) ==10584== by 0x82D31F8: execute (zend_vm_execute.h:92) ==10584== by 0x82D371A: zend_do_fcall_common_helper_SPEC (zend_vm_execute.h:234) ==10584== by 0x82D6614: ZEND_DO_FCALL_SPEC_CONST_HANDLER (zend_vm_execute.h:1681) ==10584== by 0x82D31F8: execute (zend_vm_execute.h:92) ==10584== by 0x82B3E37: zend_execute_scripts (zend.c:1134) ==10584== by 0x826A9BC: php_execute_script (main.c:1790) ==10584== by 0x831A5B5: main (php_cli.c:1127) ==10584== ==10584== ==10584== 20 (16 direct, 4 indirect) bytes in 1 blocks are definitely lost in loss record 2 of 2 ==10584== at 0x401C6CE: malloc (vg_replace_malloc.c:149) ==10584== by 0x82995DF: _emalloc (zend_alloc.c:2231) ==10584== by 0x82D9F5D: ZEND_ADD_ARRAY_ELEMENT_SPEC_CONST_UNUSED_HANDLER (zend_vm_execute.h:3559) ==10584== by 0x82DA140: ZEND_INIT_ARRAY_SPEC_CONST_UNUSED_HANDLER (zend_vm_execute.h:3609) ==10584== by 0x82D31F8: execute (zend_vm_execute.h:92) ==10584== by 0x82D371A: zend_do_fcall_common_helper_SPEC (zend_vm_execute.h:234) ==10584== by 0x82D6614: ZEND_DO_FCALL_SPEC_CONST_HANDLER (zend_vm_execute.h:1681) ==10584== by 0x82D31F8: execute (zend_vm_execute.h:92) ==10584== by 0x82B3E37: zend_execute_scripts (zend.c:1134) ==10584== by 0x826A9BC: php_execute_script (main.c:1790) ==10584== by 0x831A5B5: main (php_cli.c:1127) ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=41113&edit=1