Re: [PHP] Re: How do I remove an array element from within a recursive function? [solved]
OMG! How retarded am I. Duh. of course... For some reason I thought you
could use the & reference because it was a "pointer" to the actual
object
menuItem::removeMenuItems($navArray['dart'], array('Login',
'Lost Password'));
public static final function removeMenuItems(&$menuItems, $removeArray)
{
foreach($menuItems as $key => $value)
if (is_array($value->children))
menuItem::removeMenuItems($value->children,
$removeArray);
elseif (in_array($value->menu, $removeArray))
unset($menuItems[$key]);
}
-Original Message-
From: Chris
To: Daevid Vincent
Cc: php-general@lists.php.net, Shawn McKenzie
Subject: Re: [PHP] Re: How do I remove an array element from within a
recursive function?
Date: Fri, 27 Feb 2009 13:47:38 +1100
Daevid Vincent wrote:
> I tried that and it still doesn't work. I even tried this hardcore
> "test":
>
> public static final function removeMenuItems(&$menuItems, $removeArray)
> {
> foreach($menuItems as &$value)
> {
> unset($value);
> }
> }
You don't unset the value, you unset the key.
$value) {
if ($value == 'menu2') {
unset($items[$_menuKey]);
}
}
echo "After:\n";
print_r($items);
$ php test.php
Before:
Array
(
[0] => menu1
[1] => menu2
[2] => menu3
)
After:
Array
(
[0] => menu1
[2] => menu3
)
RE: [PHP] Re: How do I remove an array element from within a recursive function?
> -Original Message-
> From: Chris [mailto:dmag...@gmail.com]
> Sent: Thursday, February 26, 2009 8:48 PM
> To: Daevid Vincent
> Cc: php-general@lists.php.net; Shawn McKenzie
> Subject: Re: [PHP] Re: How do I remove an array element from within a
> recursive function?
>
> Daevid Vincent wrote:
> > I tried that and it still doesn't work. I even tried this hardcore
> > "test":
> >
> > public static final function removeMenuItems(&$menuItems,
> $removeArray)
> > {
> > foreach($menuItems as &$value)
> > {
> > unset($value);
> > }
> > }
>
> You don't unset the value, you unset the key.
>
>
> $items = array('menu1', 'menu2', 'menu3');
>
> echo "Before:\n";
> print_r($items);
>
> foreach ($items as $_menuKey => $value) {
> if ($value == 'menu2') {
> unset($items[$_menuKey]);
> }
> }
>
> echo "After:\n";
> print_r($items);
>
>
> $ php test.php
> Before:
> Array
> (
> [0] => menu1
> [1] => menu2
> [2] => menu3
> )
> After:
> Array
> (
> [0] => menu1
> [2] => menu3
> )
I would have gone with array_splice() on this one, I think. However, I
believe it will mangle associative arrays. Glad to know that there's a
way to use unset() on these, as I was unaware of it.
<3 this list! :D
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Re: [PHP] Re: How do I remove an array element from within a recursive function?
Daevid Vincent wrote:
I tried that and it still doesn't work. I even tried this hardcore
"test":
public static final function removeMenuItems(&$menuItems, $removeArray)
{
foreach($menuItems as &$value)
{
unset($value);
}
}
You don't unset the value, you unset the key.
$value) {
if ($value == 'menu2') {
unset($items[$_menuKey]);
}
}
echo "After:\n";
print_r($items);
$ php test.php
Before:
Array
(
[0] => menu1
[1] => menu2
[2] => menu3
)
After:
Array
(
[0] => menu1
[2] => menu3
)
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Re: [PHP] Re: How do I remove an array element from within a recursive function?
I tried that and it still doesn't work. I even tried this hardcore
"test":
public static final function removeMenuItems(&$menuItems, $removeArray)
{
foreach($menuItems as &$value)
{
unset($value);
}
}
-Original Message-
From: Shawn McKenzie
To: php-general@lists.php.net
Subject: [PHP] Re: How do I remove an array element from within a
recursive function?
Date: Thu, 26 Feb 2009 20:10:20 -0600
Daevid Vincent wrote:
> I'm trying to remove ["menu"] == 'Login' from the array, but despite
"finding" the element, it never removes.
> isn't that what the & reference stuff is for?
Yes, but foreach can't modify an array unless you use a reference in the
foreach also. Try this:
foreach($menuItems as &$value)
>
> menuItem::removeMenuItems($navArray['dart'], array('Login', 'Lost Password'));
>
>
> public static final function removeMenuItems(&$menuItems, $removeArray)
> {
> foreach($menuItems as $value)
> {
> if (is_array($value->children))
> menuItem::removeMenuItems(&$value->children,
> $removeArray);
> else
> {
> //echo "*** CHECKING ".$value->menu." against
> ".implode(',',$removeArray)." ***";
> if (in_array($value->menu, $removeArray))
> {
> //echo "*** REMOVING ".$value->menu."
> ***";
> unset($value);
> }
> }
> }
> }
>
--
Thanks!
-Shawn
http://www.spidean.com
