I want to do array_unique BUT IN REVERSE!

how to keep values in an array that appear more than "x" times?

[yongfook]

hello everyone. This is a simple problem I think, but I can't work it out.

Usually you need to get unique values from an array, but I actually sort of want to do the opposite to that.

I need to get all the values from an array that appear more than once, and discard the rest, so like:

(orange, banana, strawberry, strawberry, orange, pineapple, orange, orange)

becomes

(orange, strawberry)

Any ideas how I would do that?

Cheers!
YF

[willybfriendly]

Something like

SELECT * FROM 'favorites' WHERE fruit = 'orange' OR fruit = 'strawberry'

WBF

[yongfook]

no I think you've misunderstood. I'm not getting my data from MySQL or anything.

I just have a simple data array with words. There are many words which are the same. I want to shrink the array to contain ONLY those words that occur one or more times within the array.

[mincklerstraat]

$array = array('orange', 'banana', 'strawberry', 'strawberry', 'orange', 'pineapple', 'orange', 'orange'); 
$countedvals = array_count_values($array); 
$filtered = array_filter($countedvals, 'more_than_one_filter'); 
$filtered = array_keys($filtered); 
echo '<pre>'; 
print_r($filtered); 
echo '</pre>'; 
function more_than_one_filter($var){ 
return ($var > 1); 
} 

This is a bit round-a-bout, maybe someone else here can suggest a more direct method.

[yongfook]

thanks! I'll try that out.

Funny, it really seems like there should be a php array function for this already... :(