Assign a static function to a variable in PHP
- by Felipe Almeida
I would like to assign a static function to a variable so that I can send it around as a parameter. For example:
class Foo{
private static function privateStaticFunction($arg1,$arg2){
//compute stuff on the args
}
public static function publicStaticFunction($foo,$bar){
//works
$var = function(){
//do stuff
};
//also works
$var = function($someArg,$someArg2){
//do stuff
};
//Fatal error: Undefined class constant 'privateStaticFunction'
$var = self::privateStaticMethod;
//same error
$var = Foo::privateStaticFunction;
//compiles, but errors when I try to run $var() somewhere else, as expected
//Fatal error: Call to private method Foo::privateStaticMethod() from context ''
$var = function(){
return Foo::privateStaticMethod();
};
}
}
I've tried a few more variations but none of them worked.
I don't even expect this sort of functional hacking to work with PHP but hey, who knows?
Is it possible to do that in PHP or will I need to come up with some hack using eval?
P.S.: LawnGnome on ##php mentioned something about it being possible to do what I want using array('Foo','privateStaticMethod') but I didn't understand what he meant and I didn't press him further as he looked busy.
