|
|
|
|
Bookmark this on Delicious
Share on Facebook
 Slashdot It!
Digg  aggregate
Dynamic class and object aggregation of methods and properties
(PHP 4 >= 4.2.0)
Code Examples / Notes » aggregatehewei
YES you can use aggregation functions to simulate multiple inheritence. function foo() { aggregate($this, "bar"); bar::bar(); } gmail pfayolle
Note that even if this can be used to emulate multiple inheritance to some extent, an object in PHP can only be subclass of the class used in the class declaration and no other. <?php class A {} class B {} class C extends A { function C() { aggregate($this, 'B'); // emulate multiple inheritance } } $c = new C; echo (int)is_subclass_of($c, 'B'); /* Output: 0 */ ?> kencomer
For PHP5 applications, the aggregate functionality available through classkit has been incorporated into and replaced by runkit. Per the classkit page of the PHP manual: "Note: This extension has been replaced by runkit, which is not limited to class manipulation but has function manipulation, as well." http://php.net/manual/en/ref.runkit.php Per the runkit page: " This package is meant as a feature added replacement for the classkit package. When compiled with the --enable-runkit=classkit option to ./configure, it will export classkit compatible function definitions and constants." matt barry
A note for those who may be implementing projects in PHP4 using aggregate(); these functions do not exist in PHP5. For similar functionality, you can try using the Classkit extension: http://us2.php.net/manual/en/ref.classkit.php |
