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I am trying to Sort the following Array but for some odd reason it doesn't seem to work

$sizearray = Array ( [0] => 39 [1] => 40 [2] => 41 [3] => 42 [4] => 43 [5] => 44 [6] => 45 >[7] => 39 [8] => 40 [9] => 41 [10] => 42 [11] => 43 [12] => 44 [13] => 45 [14] => 39 [15] => >40 [16] => 41 [17] => 42 [18] => 43 [19] => 44 [20] => 45 )

$sizearray = array_values(sort(array_unique($sizearray)));

Warning: array_values() [function.array-values]: The argument should be an array in /home/starlet/public_html/productlist.php on line 349

Note: If i remove sort() function, the array_values() function runs fine.

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2 Answers

up vote 1 down vote accepted

That's because sort is in-place and returns a boolean.

From the docs:

bool sort ( array &$array [, int $sort_flags = SORT_REGULAR ] )

You'll probably need to do something like this:

$sizearray = array_unique($sizearray);
sort($sizearray);
$sizearray = array_values($sizearray);
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up vote 1 down vote

From the docs:

Return Values

Returns TRUE on success or FALSE on failure.

Note how it does not say "Returns the sorted array". This is because sort() sorts in-place.

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