Bug #78170 [NEW]: Missing Z_PARAM_OPTIONAL results in a TypeError with incorrect message

From: jasny@php.net Operating system: PHP version: 7.4Git-2019-06-14 (Git) Package: Scripting Engine problem Bug Type: Bug Bug description:Missing Z_PARAM_OPTIONAL results in a TypeError with incorrect message Description: ------------ When a function has optional parameters, the use of Z_PARAM_OPTIONAL is required. Forgetting to add this macro leads to a TypeError with a message about the given required argument instead of the missing argument. Test script: --------------- PHP_FUNCTION(test_it) { zend_long code; char *phrase; size_t phrase_len; ZEND_PARSE_PARAMETERS_START_EX(ZEND_PARSE_PARAMS_THROW, 1, 2) Z_PARAM_LONG(code) Z_PARAM_STRING(phrase, phrase_len) ZEND_PARSE_PARAMETERS_END_EX(); //... } <?php test_it(100); ?> Expected result: ---------------- Fatal error: Uncaught TypeError: test_it() expects parameter 2 to be string, null given Actual result: -------------- Fatal error: Uncaught TypeError: test_it() expects parameter 1 to be integer, integer given -- Edit bug report at https://bugs.php.net/bug.php?id=78170&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=78170&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=78170&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=78170&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=78170&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=78170&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=78170&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=78170&r=needscript Try newer version: https://bugs.php.net/fix.php?id=78170&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=78170&r=support Expected behavior: https://bugs.php.net/fix.php?id=78170&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=78170&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=78170&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=78170&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=78170&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=78170&r=dst IIS Stability: https://bugs.php.net/fix.php?id=78170&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=78170&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=78170&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=78170&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=78170&r=mysqlcfg