Re: Unique items in an array
| From: | Jim Lucas | Date: | Thu, 15 Dec 2011 00:16:06 +0000 |
| Subject: | Re: Unique items in an array | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-316018@lists.php.net to get a copy of this message | ||
On 12/13/2011 1:15 PM, Marc Guay wrote:
> Hi folks,
>
> Let's say that I have the following array:
>
> [0]=>
> array(35) {
> ["contact_id"]=>
> string(3) "356"
> ["contact_first_name"]=>
> string(4) "Marc"
> }
> [1]=>
> array(35) {
> ["contact_id"]=>
> string(3) "247"
> ["contact_first_name"]=>
> string(4) "Marc"
> }
> [2]=>
> array(35) {
> ["contact_id"]=>
> string(3) "356"
> ["contact_first_name"]=>
> string(4) "Marc"
> }
>
> And I would like to filter out exact duplicates, such as key 0 and key
> 2 in this example, leaving me with an array containing only unique
> entries. How would you go about it?
>
> Thanks for any help,
> Marc
>
Assuming you want to make things unique based on the "contact_first_name" field,
how would you decide which record to keep? The first one you run in to, the
last one you come across, or some other criteria?
--
Jim Lucas
http://www.cmsws.com/
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