Req #78325 [NEW]: Function overloading type prevents overloading
From: dallas at ekkysoftware dot com
Operating system: Both
PHP version: 7.1.30
Package: Class/Object related
Bug Type: Feature/Change Request
Bug description:Function overloading type prevents overloading
Description:
------------
Issues with overriding parameters of the same function with different
types is causing a compilation errors that I don't know how to fix.
If there is a fix, can you please let me know and put it somewhere on
the Internet so Google and I can find it.
Test script:
---------------
class Fie{
protected $value;
function copy(Fie $new) : Fie
{
$this->value = $new->value;
return $this;
}
}
class Foh extends Fie{
protected $field;
function copy(Foh $new) : Foh
{
$this->field = $new->field;
return parent::copy($new);
}
}
Expected result:
----------------
Not needing to totally rewrite Fie's code in Foh.
$n = new Foh();
$b = new Foh();
$b->copy($n);
Actual result:
--------------
PHP Fatal error: Declaration of Foh::copy(Foh $new): Foh must be
compatible with Fie::copy(Fie $new): Fie in test_file.php on line 29
Fatal error: Declaration of Foh::copy(Foh $new): Foh must be compatible
with Fie
::copy(Fie $new): Fie in test_file.php on line 29
--
Edit bug report at https://bugs.php.net/bug.php?id=78325&edit=1
--
Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=78325&r=trysnapshot54
Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=78325&r=trysnapshot55
Try a snapshot (trunk): https://bugs.php.net/fix.php?id=78325&r=trysnapshottrunk
Fixed in SVN: https://bugs.php.net/fix.php?id=78325&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=78325&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=78325&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=78325&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=78325&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=78325&r=support
Expected behavior: https://bugs.php.net/fix.php?id=78325&r=notwrong
Not enough info: https://bugs.php.net/fix.php?id=78325&r=notenoughinfo
Submitted twice: https://bugs.php.net/fix.php?id=78325&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=78325&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=78325&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=78325&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=78325&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=78325&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=78325&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=78325&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=78325&r=mysqlcfg
Thread (3 messages)
- dallas at ekkysoftware dot com