[PHP] include() and duplicate function definition
Hi, :-)
I'm making a child theme for WordPress. I need to rewrite one function
defined in ../sometheme/functions/actions.php and put that rewritten
function in wp-content/themes/sometheme-child/functions/actions.php.
But I want to preserve ../sometheme/functions/actions.php unchanged
in any way. (Future theme updates would just overwrite any changes I
made.)
So, in my new actions.php, I put an include followed by the
replacement function definition, named identically to the one I want
to replace:
?php
include '../sometheme/functions/actions.php';
function foo($arg_1, $arg_2, /* ..., */ $arg_n)
{
echo All my new code.\n;
}
?
Because this duplicate foo() function definition comes after the foo()
defined in the included file, does it replace the included foo()?
Or how can I achieve what I want?
Big thanks in advance for any suggestions. :-)
David
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Re: [PHP] include() and duplicate function definition
On Wed, 3 Nov 2010 17:59:06 +0800, David Nelson
comme...@traduction.biz wrote:
Hi, :-)
I'm making a child theme for WordPress. I need to rewrite one
function
defined in ../sometheme/functions/actions.php and put that
rewritten
function in
wp-content/themes/sometheme-child/functions/actions.php.
But I want to preserve ../sometheme/functions/actions.php unchanged
in any way. (Future theme updates would just overwrite any changes I
made.)
So, in my new actions.php, I put an include followed by the
replacement function definition, named identically to the one I want
to replace:
?php
include '../sometheme/functions/actions.php';
function foo($arg_1, $arg_2, /* ..., */ $arg_n)
{
echo All my new code.\n;
}
?
Because this duplicate foo() function definition comes after the
foo()
defined in the included file, does it replace the included foo()?
Or how can I achieve what I want?
Big thanks in advance for any suggestions. :-)
David
As far as I know it is not possible to overwrite functions in PHP
(unless you use runkit, apd). Inside classes this is possible. But
that's not the case here. Why do the functions have to be equally named?
Try to create a new function and call the original function from there
if needed...
foo2() {
foo()
}
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[PHP] include() and duplicate function definition
Hi Thijs, :-) On Wed, Nov 3, 2010 at 18:18, Thijs Lensselink d...@lenss.nl wrote: As far as I know it is not possible to overwrite functions in PHP (unless you use runkit, apd). Inside classes this is possible. But that's not the case here. Why do the functions have to be equally named? If the functions aren't named the same, my replacement function will never get called by the code that uses the WordPress theme code... Try to create a new function and call the original function from there if needed... Sadly, it wouldn't work for the above reason... But thanks for your answer. :-) David Nelson -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] include() and duplicate function definition
You can check with function_exists to see if a function is already defined. If not, create it. Regards Peter On Nov 3, 2010 11:40 AM, David Nelson comme...@traduction.biz wrote: Hi Thijs, :-) On Wed, Nov 3, 2010 at 18:18, Thijs Lensselink d...@lenss.nl wrote: As far as I know it is not possible to overwrite functions in PHP (unless you use runkit, apd). Inside classes this is possible. But that's not the case here. Why do the functions have to be equally named? If the functions aren't named the same, my replacement function will never get called by the code that uses the WordPress theme code... Try to create a new function and call the original function from there if needed... Sadly, it wouldn't work for the above reason... But thanks for your answer. :-) David Nelson -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] include() and duplicate function definition
Hi Peter, :-) On Wed, Nov 3, 2010 at 18:44, Peter Lind peter.e.l...@gmail.com wrote: You can check with function_exists to see if a function is already defined. If not, create it. The function is definitely already defined, I just need to replace it without touching the file in which it's defined... David Nelson -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] include() and duplicate function definition
That's not going to happen. My point was you could check in the original file if the function is defined and if not then define it. On Nov 3, 2010 11:55 AM, David Nelson comme...@traduction.biz wrote: Hi Peter, :-) On Wed, Nov 3, 2010 at 18:44, Peter Lind peter.e.l...@gmail.com wrote: You can check with function_exists to see if a function is already defined. If not, create it. The function is definitely already defined, I just need to replace it without touching the file in which it's defined... David Nelson
Re: [PHP] include() and duplicate function definition
Hi, :-) On Wed, Nov 3, 2010 at 19:29, Peter Lind peter.e.l...@gmail.com wrote: That's not going to happen. My point was you could check in the original file if the function is defined and if not then define it. OK, thanks, Thijs and Peter, it looks like I'm trying to do something that is not currently possible in PHP. Time for some lateral thinking. :-) David Nelson -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] include() and duplicate function definition
On Wed, 3 Nov 2010 19:53:52 +0800, David Nelson
comme...@traduction.biz wrote:
Hi, :-)
On Wed, Nov 3, 2010 at 19:29, Peter Lind peter.e.l...@gmail.com
wrote:
That's not going to happen. My point was you could check in the
original
file if the function is defined and if not then define it.
OK, thanks, Thijs and Peter, it looks like I'm trying to do something
that is not currently possible in PHP. Time for some lateral
thinking.
:-)
David Nelson
David,
I re-read your original post. And noticed you include the function
inside your child action.php
Is there a special reason for that? You want to overwrite the original
function in a child theme.
probably to get different functionality. So why do you need the
original function?
Just create your action.php and define the same function.
// include '../sometheme/functions/actions.php';
function foo($arg_1, $arg_2, /* ..., */ $arg_n) {
echo All my new code.\n;
}
It's code duplication. But i don't think themes should have
dependencies to one an other.
You could also create a actions.php file outside the themes folder.
wp-content/shared-functions/action.php
And then in your themes do:
theme 1
include shared-function/action.php;
foo();
theme 2
include shared-function/action.php;
foo();
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[PHP] include() and duplicate function definition
Hi Thijs, :-) On Wed, Nov 3, 2010 at 20:38, Thijs Lensselink d...@lenss.nl wrote: I re-read your original post. And noticed you include the function inside your child action.php Is there a special reason for that? You want to overwrite the original function in a child theme. probably to get different functionality. So why do you need the original function? Just create your action.php and define the same function. It's a WordPress issue. When theme updates become available from the original vendor, you can update them from within the admin backend. In that case, any hacks you've applied (such as removing a function) get overwritten. So the evangelized solution is to create a child theme. The child theme incorporates only files that you've added or changed, with the original parent theme being used for all others. Easy peasy if you want to *add* a function. But, if you want to *modify* a function, you're faced with the problem of the original function still being present in the parent theme files and of your having to define a function of the same name in your child theme (if you change the function name, you then have to hack other code further upstream, and the work involved becomes not worth the bother). Somehow, I would need to make my hacked function *replace* the original function, *without* touching the original function... It seems like that's not possible and I'll have to find another solution... unless my explanation gives you any good ideas? Just to put the dots on the I's, the original actions.php contains a lot of *other* functions that I don't want to touch, and that I do want to leave exposed to the updates process. It's just one single function I want to hack... Sticky problem, huh? :-) In any case, thanks for your kind help, :-) David Nelson P.S. Sorry about the direct mails: I keep forgetting to hit the Replly to all button. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] include() and duplicate function definition
On Thu, 2010-11-04 at 00:00 +0800, David Nelson wrote: Hi Thijs, :-) On Wed, Nov 3, 2010 at 20:38, Thijs Lensselink d...@lenss.nl wrote: I re-read your original post. And noticed you include the function inside your child action.php Is there a special reason for that? You want to overwrite the original function in a child theme. probably to get different functionality. So why do you need the original function? Just create your action.php and define the same function. It's a WordPress issue. When theme updates become available from the original vendor, you can update them from within the admin backend. In that case, any hacks you've applied (such as removing a function) get overwritten. So the evangelized solution is to create a child theme. The child theme incorporates only files that you've added or changed, with the original parent theme being used for all others. Easy peasy if you want to *add* a function. But, if you want to *modify* a function, you're faced with the problem of the original function still being present in the parent theme files and of your having to define a function of the same name in your child theme (if you change the function name, you then have to hack other code further upstream, and the work involved becomes not worth the bother). Somehow, I would need to make my hacked function *replace* the original function, *without* touching the original function... It seems like that's not possible and I'll have to find another solution... unless my explanation gives you any good ideas? Just to put the dots on the I's, the original actions.php contains a lot of *other* functions that I don't want to touch, and that I do want to leave exposed to the updates process. It's just one single function I want to hack... Sticky problem, huh? :-) In any case, thanks for your kind help, :-) David Nelson P.S. Sorry about the direct mails: I keep forgetting to hit the Replly to all button. I am curious on how this would work, if for some reason they were using a different template? the function you want to overwrite, wont be used, and therefore, wouldn't your app/template/whatever be updated improperly than waht you expect it to be? Just curious... -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] include() and duplicate function definition
Hi guys, :-) Just FYI, I got this answer from the theme dev: David, You don't need the include statement. If you create your function in wp-content/themes/suffusion-child/functions.php it will get automatically included. Secondly, using the same function name wouldn't work, because it would require me to encase the original function definition in actions.php in a function_exists clause. I would suggest using a different function name, then using remove_action to remove the older action and add_action to add the new action. (http://www.aquoid.com/forum/viewtopic.php?f=4t=3070) I'm not yet confident about how to actually implement this in code... Any tips or advice would be gratefully heard. On Thu, Nov 4, 2010 at 00:13, Steve Staples sstap...@mnsi.net wrote: I am curious on how this would work, if for some reason they were using a different template? the function you want to overwrite, wont be used, and therefore, wouldn't your app/template/whatever be updated improperly than waht you expect it to be? Steve, maybe the above informs? In any case, the function to be overwritten is likely to remain fairly stable... All the best, :-) David Nelson -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
