[RESOLVED] Removing Arrays If Data Has More Then 4 Duplicates

[hatching]

How do I remove the array data (not just remove duplicate) if there are more then 4 duplicates and leaving less then 4 alone?

array_unique removes the duplicates but doesn't remove the original data as well.

Array
(
    [0] => Mar 11th 2008
    [1] => Mar 9th 2008
    [2] => Mar 8th 2008
    [3] => Mar 8th 2008
    [4] => Mar 8th 2008
    [5] => Mar 6th 2008
    [6] => Mar 6th 2008
    [7] => Mar 6th 2008
    [8] => Mar 6th 2008
    [9] => Mar 6th 2008
)

to

Array
(
    [0] => Mar 11th 2008
    [1] => Mar 9th 2008
    [2] => Mar 8th 2008
    [3] => Mar 8th 2008
    [4] => Mar 8th 2008
)

[laserlight]

I suggest that you write something along these lines:

<?php
$dates = array(
    'Mar 11th 2008',
    'Mar 9th 2008',
    'Mar 8th 2008',
    'Mar 8th 2008',
    'Mar 8th 2008',
    'Mar 6th 2008',
    'Mar 6th 2008',
    'Mar 6th 2008',
    'Mar 6th 2008',
    'Mar 6th 2008'
);

$value_count = array_count_values($dates);

$dates = array_filter($dates,
    create_function('$date', 'global $value_count; return $value_count["$date"] < 4;'));

print_r($dates);
?>

[php4me]

laserlights code looks good.. I had something in mind, but that is more simplified than what i was thinking..

[hatching]

I'll study the code in depth. Thanks laserlight.