Posted by ZeldorBlat on 10/25/07 19:20

On Oct 25, 2:02 pm, Craig Taylor <ctalk...@gmail.com> wrote:
> Apparently there is no 'good' way to invoke static class functions
> from within the call_user_function in PHP 5 (I'm using PHP 5 1.2).
>
> Example:
> ------------
> <?php
> // Does php support something akin to C style function pointers??
> //
>
> class testClass
> {
> static function myFunction( $parm1 )
> {
> echo 'Hello, parm1 = '.$parm1."\n";
> }
>
> }
>
> $className = 'testClass';
> $fnName= 'myFunction';
>
> // Are these legal?
> //($fnPtr)('abc'); ... NOT LEGAL
> //$fnPtr('abc'); ... NOT LEGAL
>
> // call_user_func( $className, $fnPtr, 'abc' );
>
> // Gah... need to instantiate static class members...
> $x = new $className();
> $x->{$fnName}('abc');
> ?>
>
> ----
>
> There is documentation on php.net for call_user_func on how to invoke
> it with a non-static class member, eg: call_user_func( 'classname',
> 'fnName', 'param1'... ).
>
> The way that I've got it working feels like a kludge to me as I'm
> having to instantiate an object that is never going to be used. (I'm
> using static functions within the class as helper functions for my
> application's data classes).
>
> Thanks,
>
> - Craig Taylor


Call a class (static) method:

call_user_func(array('testClass', 'myFunction'), $arg1, $arg2, $arg3);

Call an instance method:

$t = new testClass();
call_user_func(array($t, 'myFunction'), $arg1, $arg2, $arg3);

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