#37450 [Bgs->WFx]: Type Hinting with Array of Objects

ID: 37450 Updated by: derick@php.net Reported By: mega-squall at caramail dot com -Status: Bogus +Status: Wont fix Bug Type: Feature/Change Request Operating System: ALL PHP Version: 5.1.4 New Comment: Its a valid request... so marking as "Wont fix" instead. Previous Comments: ------------------------------------------------------------------------ [2006-05-15 21:53:38] helly@php.net Thank you for taking the time to write to us, but this is not a bug. Please double-check the documentation available at http://www.php.net/manual/ and the instructions on how to report a bug at http://bugs.php.net/how-to-report.php That's impossible and never will be. But you can do that more or less yourself. Derive a class that implements ArrayAccess or reuse ArrayObject/ArrayIterator. And overload its offsetSet(). In the method body you add the check to ensure only what you want can go in. Now if that class accepts only B's you may call it ArrayOfB and the use ArrayOfB as you typehint. So obviously this is a question for general@php.net ------------------------------------------------------------------------ [2006-05-15 21:47:29] mega-squall at caramail dot com Description: ------------ Type Hinting is compatible with array and objects, but not with array containing ONLY instances of single chosen class (array of instances). This would be appreciated, if relevant with the structure of arrays. Reproduce code: --------------- class B { public $field; public __construct ($param) { $this->field = $param; } } class A { public function method (B[] $parameters){ foreach ($parameters as $object) { echo $object->field . "\n"; } } } $b = Array (); for ($count=0; $count<10; $count++) { $b[] = new B ($count); } $a = new A (); $a->method ($b); Expected result: ---------------- 0 1 2 3 4 5 6 7 8 9 Actual result: -------------- Parse error: syntax error, unexpected '[', expecting '&' or T_VARIABLE in __FILE__ on line __LINE__ ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=37450&edit=1