Bug #79248 [NEW]: Traversing empty VT_ARRAY throws com_exception

From: cmb Operating system: Windows only PHP version: 7.3Git-2020-02-08 (Git) Package: COM related Bug Type: Bug Bug description:Traversing empty VT_ARRAY throws com_exception Description: ------------ When an empty VT_ARRAY (i.e. a VT_ARRAY without any elements) is traversed via foreach, a com_exception ("index out of bounds") is thrown, what does not match the usual semantics of traversing empty collections. Test script: --------------- <?php $v = new variant([], VT_ARRAY); foreach ($v as $el) { var_dump($el); } echo "done\n"; ?> Expected result: ---------------- done Actual result: -------------- Fatal error: Uncaught com_exception: index out of bounds in C:\php-sdk\phpdev\vc15\x64\com.php:3 Stack trace: #0 {main} thrown in C:\php-sdk\phpdev\vc15\x64\com.php on line 3 -- Edit bug report at https://bugs.php.net/bug.php?id=79248&edit=1 -- Fix committed: https://bugs.php.net/fix.php?id=79248&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=79248&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=79248&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=79248&r=needscript Try newer version: https://bugs.php.net/fix.php?id=79248&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=79248&r=support Expected behavior: https://bugs.php.net/fix.php?id=79248&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=79248&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=79248&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=79248&r=globals PHP version support discontinued: https://bugs.php.net/fix.php?id=79248&r=phptooold Daylight Savings: https://bugs.php.net/fix.php?id=79248&r=dst IIS Stability: https://bugs.php.net/fix.php?id=79248&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=79248&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=79248&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=79248&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=79248&r=mysqlcfg