Bug #71879 [Opn]: Variant type changed with PHP7 x64 with lange values (VT_R8 -> VT_I8)

Edit report at https://bugs.php.net/bug.php?id=71879&edit=1 ID: 71879 User updated by: markus dot demml at bmlvs dot gv dot at Reported by: markus dot demml at bmlvs dot gv dot at -Summary: Variant type VT_ARRAY as output parameter invalid +Summary: Variant type changed with PHP7 x64 with lange values (VT_R8 -> VT_I8) Status: Open Type: Bug Package: COM related Operating System: Windows 7 x64 -PHP Version: 7.0.4 +PHP Version: 7.x x64 Block user comment: N Private report: N New Comment: I've tested this problem again with all current released versions, resulting thats only a problem with PHP 7 x64 ok with: * php-5.6.33-Win32-VC11-x64 * php-5.6.33-Win32-VC11-x86 * php-7.0.27-Win32-VC14-x86 * php-7.1.13-Win32-VC14-x86 * php-7.2.1-Win32-VC15-x86 error with: * php-7.0.27-Win32-VC14-x64 * php-7.1.13-Win32-VC14-x64 * php-7.2.1-Win32-VC15-x64 I found that RegRead works properly and GetStringValue doesn't. $WSH = new COM("WScript.Shell"); $value1 = $WSH->RegRead('HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion'); $StdRegProv = new COM("WinMgmts://localhost/root/default:StdRegProv"); $value2 = new VARIANT("", VT_BSTR); // 8 $retval = $StdRegProv->GetStringValue(0x80000002, 'SOFTWARE\Microsoft\Windows NT\CurrentVersion','CurrentVersion' , $sValue); With some other checks and PHP Source reading I found that the Value 0x80000002 makes the difference with the function php_com_variant_from_zval with PHP x86 and PHP 5.6 x64 -> case IS_DOUBLE: variant_get_type( new VARIANT(0x80000002 /* 2147483650 */)); // 5 = VT_R8 with PHP 7 x64 -> case IS_LONG: variant_get_type( new VARIANT(0x80000002 /* 2147483650 */)); // 20 = VT_UI8 / VT_I8 ? -> changed with https://github.com/php/php-src/commit/26e7e54e782d8ba80a7f964f0bfcc3a7920349c2 -- If you pin the types, every version is working properly // uint32 = GetStringValue(uint32 hDefKey, string sSubKeyName, string sValueName, string &sValue) // Gets the string data value of a named value. $sSubKeyName = new VARIANT('SOFTWARE\Microsoft\Windows NT\CurrentVersion', VT_BSTR); // 8 $sValueName = new VARIANT('CurrentVersion', VT_BSTR); // 8 $sValue = new VARIANT("", VT_BSTR); // 8 $hDefKey = new VARIANT(0x80000002 /* 2147483650 */, VT_R8 ); // 5 $StdRegProv = new COM("WinMgmts://localhost/root/default:StdRegProv"); $retval = $StdRegProv->GetStringValue($hDefKey, $sSubKeyName,$sValueName , $sValue); // $sValue = "6.1" on Win7 --- The posted test scripts works correctly on PHP 7.x x64 if you fix the type to VT_R8 define('HKEY_LOCAL_MACHINE', 0x80000002); $StdRegProv = new COM("WinMgmts:{impersonationLevel=impersonate}//localhost/root/default:StdRegProv"); $valueNames = new Variant(array(), VT_ARRAY); $valueTypes = new Variant(array(), VT_ARRAY); $hDefKey = new Variant(HKEY_LOCAL_MACHINE, VT_R8); // patch try { $StdRegProv->EnumValues($hDefKey, "SOFTWARE\Microsoft\Windows NT\CurrentVersion", $valueNames, $valueTypes); foreach($valueNames as $name) { echo "[" . __LINE__ . "] " . "name: $name \n"; } foreach($valueTypes as $type) { echo "[" . __LINE__ . "] " . "type: $type \n"; } } catch (Exception $e) { echo "[" . __LINE__ . "] " . "Exception $e\n"; echo "[" . __LINE__ . "] " . "var_dump:\n"; var_dump($e); echo "[" . __LINE__ . "] " . "print_r:\n"; print_r($e); } ---- * I don't understand why i can't use VT_UI4 for hDefKey but thats an API and no PHP problem, isn't? * VT_UI8 and VT_I8 are not documented http://php.net/manual/en/com.constants.php * was this change VT_R8 to VT_I8 intended or a side effect ? Previous Comments: ------------------------------------------------------------------------ [2016-03-22 10:06:48] markus dot demml at bmlvs dot gv dot at Description: ------------ With PHP 7.0.4 (x64) i get an com_exception "Type mismatch" from the WMI-Functions EnumValues, EnumKey but this works with 5.6.19 5.5.33 5.5.29 5.5.12. I used php.ini-development with these changes: extension_dir = "ext" extension=php_com_dotnet.dll Test script: --------------- define('HKEY_LOCAL_MACHINE', 0x80000002); $StdRegProv = new COM("WinMgmts:{impersonationLevel=impersonate}//localhost/root/default:StdRegProv"); $valueNames = new Variant(array(), VT_ARRAY); // also new Variant(array()) $valueTypes = new Variant(array(), VT_ARRAY); // also new Variant(array()) try { $StdRegProv->EnumValues(HKEY_LOCAL_MACHINE, "SOFTWARE\PhpTestRegEnum", $valueNames, $valueTypes); foreach($valueNames as $name) { echo "[" . __LINE__ . "] " . "name: $name \n"; } foreach($valueTypes as $type) { echo "[" . __LINE__ . "] " . "type: $type \n"; } } catch (Exception $e) { echo "[" . __LINE__ . "] " . "Exception $e\n"; echo "[" . __LINE__ . "] " . "var_dump:\n"; var_dump($e); echo "[" . __LINE__ . "] " . "print_r:\n"; print_r($e); } Expected result: ---------------- C:\php-5.6.19-Win32-VC11-x64>php ..\test-registry-access-shortversion.php [9]name: test-reg_sz [9]name: test-reg_bin [9]name: test-reg_dword_32 [9]name: test-reg_qword_64 [9]name: test-reg_multi_sz [12]type: 1 [12]type: 3 [12]type: 4 [12]type: 11 [12]type: 7 Actual result: -------------- C:\php-7.0.4-Win32-VC14-x64>php ..\test-registry-access-shortversion.php [15]Exception com_exception: Source: SWbemObjectEx Description: Type mismatch in C:\test-registry-access-shortversion.php:7 Stack trace: #0 C:\test-registry-access-shortversion.php(7): com->EnumValues(2147483650, 'SOFTWARE\\PhpTes...', Object(variant), Object(variant)) #1 {main} [16]var_dump: ... ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=71879&edit=1