[PHP] removing all duplicate values from an array

[Allowee]

Hi,

I'm looking for a function that does almost the same as array_unique()

But it must also delete the other duplicate entry.

sample to explain:

array(
'a' => 'one',
'b' => 'one',
'c' => 'zero',
'd' => 'two'
);

I now want the result to be:

array(
'c' => 'zero',
'd' => 'two'
);

This way I will be able to do an array_diff and then see all the duplicate 
entries listed.

this is to find dup. ip address for a hosting system,
displaying both accounts will make it easy to trace the amount of accounts 1 
ip curruntly has.


Anybody know how to do this?

Thanks,
Allowee

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Re: [PHP] removing all duplicate values from an array

[Allowee]

On Thursday 30 October 2003 20:37, Mike Migurski wrote:
> >>I'm looking for a function that does almost the same as array_unique()
> >>
> >>But it must also delete the other duplicate entry.
> >
> >
> >
> >Untested pseudo-PHP follows -
> >
> > $encountered_elements = array();
> > foreach($original_array as $key => $val)
> > if(in_array($val, $encountered_elements)) {
> > unset($original_array[$key]);
> > } else {
> > $encountered_elements[$key] = $val;
> > }
>
> Oops, that should have been:
>
>$encountered_elements = array();
>foreach($original_array as $key => $val)
>if(in_array($val, $encountered_elements)) {
>unset($original_array[$encountered_elements[$val]]);
>} else {
>$encountered_elements[$val] = $key;
>}

Hi,

I edited it a bit to match my script and after some tweaks of my own code it 
started working :)

Thanks,

Allowee

>
>
> -
> michal migurski- contact info and pgp key:
> sf/cahttp://mike.teczno.com/contact.html

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