Is it possible to overwrite a function in PHP

Question

Can you declare a function like this...

function ihatefooexamples(){   return "boo-foo!"; }; 

And then redeclare it somewhat like this...

if ($_GET['foolevel'] == 10){   function ihatefooexamples(){     return "really boo-foo";   }; }; 

Is it possible to overwrite a function that way?

Any way?

Answer 1

Edit

To address comments that this answer doesn't directly address the original question. If you got here from a Google Search, start here

There is a function available called override_function that actually fits the bill. However, given that this function is part of The Advanced PHP Debugger extension, it's hard to make an argument that override_function() is intended for production use. Therefore, I would say "No", it is not possible to overwrite a function with the intent that the original questioner had in mind.

Original Answer

This is where you should take advantage of OOP, specifically polymorphism.

interface Fooable {     public function ihatefooexamples(); }  class Foo implements Fooable {     public function ihatefooexamples()     {         return "boo-foo!";     } }  class FooBar implements Fooable {     public function ihatefooexamples()     {         return "really boo-foo";     } }  $foo = new Foo();  if (10 == $_GET['foolevel']) {     $foo = new FooBar(); }  echo $foo->ihatefooexamples();