How to iterate throut an array?

Hello,
I have an array like this:

Array
(
[0] =Array
(
[1] =Array
(
[ID] =7A585DC0
[Co] =Array
(
[C] =nat
[b] =7A585DC0
)

[T] =Array
(
[1] =Array
(
[ID] =>7A585DC0

I want to delete some items from it. I think I have to do it recursively,
but PHP says:
"Fatal error: Only variables can be passed by reference in c:\www\p.php on
line 51"

The function looks like this:

function Del(&$tresc)
{
if (is_array($tres c['T'])) Del($tresc['T']);
else if (!$tresc['T'])
{
for ($x=0;$x<count( $tresc);$x++)
{
Del($tresc[$x]); //THIS IS LINE 51
}
}
else if (($tresc['Co']['C']=='hl') and
(!$tresc['Co']['n']))
array_splice($t resc,0,1);
}

How to iterate through all elements and delete some of them?

Regards,
Talthen

[Benjamin Esham]

talthen.z-serwera.o2 wrote:

How to iterate through all elements and delete some of them?

Take a look at

http://www.php.net/manual/en/control...es.foreach.php

You should be able to set up a function that iterates through the array and
does what you want.

HTH,
--
Benjamin D. Esham
bd*****@gmail.c om | AIM: bdesham128 | Jabber: same as e-mail
Go not to Usenet for counsel, for they will say both yes and no.

[mootmail-googlegroups]

ta************* *****@nospam.pl wrote:

The function looks like this:

function Del(&$tresc)
{
if (is_array($tres c['T'])) Del($tresc['T']);
else if (!$tresc['T'])
{
for ($x=0;$x<count( $tresc);$x++)
{
Del($tresc[$x]); //THIS IS LINE 51
}
}
else if (($tresc['Co']['C']=='hl') and
(!$tresc['Co']['n']))
array_splice($t resc,0,1);
}

How to iterate through all elements and delete some of them?

Regards,
Talthen

Well, I'm not sure if it is causing the specific error you mentioned,
but one of your problems is the line:
for ($x=0;$x<count( $tresc);$x++)

In the array you gave as an example, you have some non-numeric key
values. Iterating a variable in order to do $tresc[$x] only works if
you have integer keys in order, such as
$tresc[0],$tresc[1],$tresc[2]...etc. For non-numeric keys, use the
foreach control structure.

Benjamin D. Esham wrote:

>You should be able to set up a function that iterates through the array and
does what you want.

mootmail-googlegroups[a_t]yahoo.com wrote:

In the array you gave as an example, you have some non-numeric key
values. Iterating a variable in order to do $tresc[$x] only works if
you have integer keys in order, such as
$tresc[0],$tresc[1],$tresc[2]...etc. For non-numeric keys, use the
foreach control structure.

Hm... thank you. I didn't know that. I thought it will enumerate all
possible keys. Will try with foreach.

Thank you both,
Talthen

Foreach is not a good solution in this task. I need to delete parent of
elements with specified value.
Let's say I have an array:
[0]-->[a]-->[A]
\-[b]
[1]-->[b]

Now I need to delete element [a] when its elements [A] and [b] have values
of, let's say, 1.
When I do foreach I cannot say what's the value of a parent or child of
current element.

Do you know how can I solve that?

Regards,
Talthen

Ok, array_walk works fine, but I cannot delet elements ;/

Regards,
Talthen