Req #69028 [NEW]: Allow variable default function parameters

From: martin at glooware dot com Operating system: all PHP version: Irrelevant Package: PHP Language Specification Bug Type: Feature/Change Request Bug description:Allow variable default function parameters Description: ------------ Currently it's not possible to use any constants, variables or anonymous functions in a function parameter as default value. This is for example not possible: function saveUser($name, $surname, $company = CONSTANT_COMPANY_VALUE) {} ... or even this ... function calculateGravitationalPull($rotation, $axis, $speed, $grav_const = (3.234 / $rotation * $speed)) {} I've come across various situations, like the example ones above, where I'd love to be able to inject a configuration value or an anonymous function as a function parameter. Coding this all inside the function is of course also possible. However, this would make it much easier to create some specific functions for which we'd be able to say how the function behaves straight from its own function and parameters documentation. -- Edit bug report at https://bugs.php.net/bug.php?id=69028&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=69028&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=69028&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=69028&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=69028&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=69028&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=69028&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=69028&r=needscript Try newer version: https://bugs.php.net/fix.php?id=69028&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=69028&r=support Expected behavior: https://bugs.php.net/fix.php?id=69028&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=69028&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=69028&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=69028&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=69028&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=69028&r=dst IIS Stability: https://bugs.php.net/fix.php?id=69028&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=69028&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=69028&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=69028&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=69028&r=mysqlcfg