Re: removing all duplicate values from an array
| From: | Mike Migurski | Date: | Thu, 30 Oct 2003 19:37:10 +0000 |
| Subject: | Re: removing all duplicate values from an array | ||
| References: | 1 2 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-168172@lists.php.net to get a copy of this message | ||
>>I'm looking for a function that does almost the same as array_unique()
>>
>>But it must also delete the other duplicate entry.
><snip>
>
>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;
}
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