Passing Variable Length Argument List to Parent

[Mark]

hello!

I have a class method that takes a variable number of parameters and
correctly deals with them with func_get_args, etc ...

i.e.

class ABC
{
public function MooSaysTheCow()
{
foreach (func_get_args( ) as $arg_name => $arg_value)
{
...
}
}
}

now, the problem is: i want to override this class and this method, have
that overriding method call the base class and then do something else. The
problem is that I don't know how to pass the parameters along.

class DEF
{
public function MooSaysTheCow()
{
parent::MooSays TheCow( WHAT DO I PUT HERE ????? );
echo "Overridden version with new exciting features!";
}
}
Any ideas?

the best i've thought of so far is terribly yucky, and not flexible to
arbitrary numbers of parameters .... blech.

class DEF
{
public function MooSaysTheCow()
{
switch (func_get_num_a rgs())
{
case 1:
parent::MooSays TheCow(func_get _arg(0));
break;
case 2:
parent::MooSays TheCow(func_get _arg(0), func_get_arg(1) );
break;
etc ....
...
..

[Dani CS]

Mark wrote:

hello!

I have a class method that takes a variable number of parameters and
correctly deals with them with func_get_args, etc ...

i.e.

class ABC
{
public function MooSaysTheCow()
{
foreach (func_get_args( ) as $arg_name => $arg_value)
{
...
}
}
}

now, the problem is: i want to override this class and this method, have
that overriding method call the base class and then do something else. The
problem is that I don't know how to pass the parameters along.
Check the comments for
<http://www.php.net/manual/en/function.func-get-args.php>

class DEF
{
public function MooSaysTheCow()
{
parent::MooSays TheCow( WHAT DO I PUT HERE ????? );
echo "Overridden version with new exciting features!";
}
}
Any ideas?

the best i've thought of so far is terribly yucky, and not flexible to
arbitrary numbers of parameters .... blech.

class DEF
{
public function MooSaysTheCow()
{
switch (func_get_num_a rgs())
{
case 1:
parent::MooSays TheCow(func_get _arg(0));
break;
case 2:
parent::MooSays TheCow(func_get _arg(0), func_get_arg(1) );
break;
etc ....
...
..
.
}
}
}
thanks.
mark.

[konsu]

did you try to pass the return value of func_get_args() ?

"Mark" <mw@ANGRYLanfea r.com> wrote in message
news:Is******** ************@nv enture.com...

hello!

I have a class method that takes a variable number of parameters and
correctly deals with them with func_get_args, etc ...

i.e.

class ABC
{
public function MooSaysTheCow()
{
foreach (func_get_args( ) as $arg_name => $arg_value)
{
...
}
}
}

now, the problem is: i want to override this class and this method, have
that overriding method call the base class and then do something else.
The
problem is that I don't know how to pass the parameters along.

class DEF
{
public function MooSaysTheCow()
{
parent::MooSays TheCow( WHAT DO I PUT HERE ????? );
echo "Overridden version with new exciting features!";
}
}
Any ideas?

the best i've thought of so far is terribly yucky, and not flexible to
arbitrary numbers of parameters .... blech.

class DEF
{
public function MooSaysTheCow()
{
switch (func_get_num_a rgs())
{
case 1:
parent::MooSays TheCow(func_get _arg(0));
break;
case 2:
parent::MooSays TheCow(func_get _arg(0), func_get_arg(1) );
break;
etc ....
...
..
.
}
}
}
thanks.
mark.
--
I am not an ANGRY man. Remove the rage from my email to reply.

Ashlee Simpson Sings! You Faint .... --More--
Ashlee Simpson Sings! Ashlee Simpsons sings! You die ... --More--

[Andy Hassall]

On Tue, 07 Dec 2004 15:37:52 -0800, Mark <mw@ANGRYLanfea r.com> wrote:

I have a class method that takes a variable number of parameters and
correctly deals with them with func_get_args, etc ...

i.e.

class ABC
{
public function MooSaysTheCow()
{
foreach (func_get_args( ) as $arg_name => $arg_value)
{
...
}
}
}

now, the problem is: i want to override this class and this method, have
that overriding method call the base class and then do something else. The
problem is that I don't know how to pass the parameters along.

class DEF
{
public function MooSaysTheCow()
{
parent::MooSays TheCow( WHAT DO I PUT HERE ????? );
echo "Overridden version with new exciting features!";
}
}
Any ideas?

the best i've thought of so far is terribly yucky, and not flexible to
arbitrary numbers of parameters .... blech.

class DEF
{
public function MooSaysTheCow()
{
switch (func_get_num_a rgs())
{
case 1:
parent::MooSays TheCow(func_get _arg(0));
break;
case 2:
parent::MooSays TheCow(func_get _arg(0), func_get_arg(1) );
break;
etc ....
...
..
.
}
}
}

What am I missing here; can't you just use func_get_args() to pass the
arguments upwards?

--
Andy Hassall / <an**@andyh.co. uk> / <http://www.andyh.co.uk >
<http://www.andyhsoftwa re.co.uk/space> Space: disk usage analysis tool

[Mark]

Dani CS wrote:

Check the comments for
<http://www.php.net/manual/en/function.func-get-args.php>

Close!

func_get_args() doesn't work because the parent function has to then be
expecting an array parameter, not a list of parameters as normal (and i do
NOT have control over the parent implementation -- it's a prepackaged
class).

i was moderately hopeful when I saw the function call_user_func_ array,
which does what i want -- takes an array with parameters and calls the
function with the array values as normal arguments

EXCEPT -- that won't work within classes, expeshully in the __construct
method ...

argh.

any other ideas?
thanks!
mark.

[Joshua Beall]

I'm typing this without testing it, but it seems like it would work. I'm
sure you take a performance hit from the eval() call, though.

$argList = '';
for($n=0;$n<fun c_get_num_args( );$n++)
$argList .= "func_get_arg($ n),";
$argList = rtrim($argList, ',');
/* $argList will not be a string that looks like
"func_get_art(0 ),func_get_arg( 1),func_get_arg (2)", repeating for however
many arguments have been passed*/
eval("parent::M ooSaysTheCow($a rgList);");

Worth a shot.

[Michael Fesser]

.oO(Mark)

I have a class method that takes a variable number of parameters and
correctly deals with them with func_get_args, etc ... [...]

now, the problem is: i want to override this class and this method, have
that overriding method call the base class and then do something else. The
problem is that I don't know how to pass the parameters along.

class DEF
{
public function MooSaysTheCow()
{
parent::MooSays TheCow( WHAT DO I PUT HERE ????? );
echo "Overridden version with new exciting features!";
}
}

Try

public function MooSaysTheCow() {
$args = func_get_args() ;
call_user_func_ array(array('pa rent', 'MooSaysTheCow' ), $args);
}

Micha

[Joshua Beall]

"Michael Fesser" <ne*****@gmx.ne t> wrote in message
news:hf******** *************** *********@4ax.c om...

Try

public function MooSaysTheCow() {
$args = func_get_args() ;
call_user_func_ array(array('pa rent', 'MooSaysTheCow' ), $args);
}

Very clever. Mark, please report back and let us know if this works for
you!

[Mark]

Joshua Beall wrote:

"Michael Fesser" <ne*****@gmx.ne t> wrote in message
news:hf******** *************** *********@4ax.c om...

Try

public function MooSaysTheCow() {
$args = func_get_args() ;
call_user_func_ array(array('pa rent', 'MooSaysTheCow' ), $args);
}

Very clever. Mark, please report back and let us know if this works for
you!

nope. probably would have in PHP4, but most certainly not in PHP5.

i'm still stuck with the switch statement in PHP5, unfortunately.

argh!
mark.
--
I am not an ANGRY man. Remove the rage from my email to reply.

[Mark]

Andy Hassall wrote:

On Tue, 07 Dec 2004 15:37:52 -0800, Mark <mw@ANGRYLanfea r.com> wrote:

What am I missing here; can't you just use func_get_args() to pass the
arguments upwards?

no. at least not in overloaded methods in classes.

the problem is that the overloadER and the overloadEE are both looking for
variable argument lists. func_get_args() returns an ARRAY.

now, the obvious (lame) solution would be to modify both functions to just
take arrays of arguments but ... i don't have control over the base class's
implementation (it's the mysqli class).

so, i appear to be stuck with the switch statement way of doing things.
d'oh!

thanks,
mark.

--
I am not an ANGRY man. Remove the rage from my email to reply.