Bug #74251 [NEW]: Parameter w/o default value after one with default value is not a syntax error

From: andrey Operating system: all PHP version: 7.0.16 Package: *General Issues Bug Type: Bug Bug description:Parameter w/o default value after one with default value is not a syntax error Description: ------------ The error is only at runtime. The linter obviously doesn't catch that. PHPStorm (as a reasonable IDE) also doesn't catch that. In languages PHP tries to follow this is a syntax error. Test script: --------------- $ php -r 'function a($b=true, $c){ var_dump($b,$c); } a(); ' Expected result: ---------------- error: default argument missing for parameter 2 Actual result: -------------- Warning: Missing argument 2 for a(), called in Command line code on line 1 and defined in Command line code on line 1 bool(true) NULL -- Edit bug report at https://bugs.php.net/bug.php?id=74251&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=74251&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=74251&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=74251&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=74251&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=74251&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=74251&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=74251&r=needscript Try newer version: https://bugs.php.net/fix.php?id=74251&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=74251&r=support Expected behavior: https://bugs.php.net/fix.php?id=74251&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=74251&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=74251&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=74251&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=74251&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=74251&r=dst IIS Stability: https://bugs.php.net/fix.php?id=74251&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=74251&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=74251&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=74251&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=74251&r=mysqlcfg