php - Remove duplicate values from Array -

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i can not "remove" double values ​​from array if use function array_unique!

<?php     $tags_array = array() ;      $query_tags = $mysql->query("select words kw users ") ;     /****     *     * query return array([1] => php,asp,net [2] => ruby,jquery,php,asp_net [3] => php,asp,visualbasic,c# [4] => [5] =>)     *     *****/     while($fetch_tags = $mysql->fetch($query_tags))      {         foreach(explode(',',$fetch_tags['kw']) $kw => $value)          {             if(empty($value)) ;             else              {                 $value = ucwords(strtolower($value)) ;                 $tags_array[] = $value ;             }          }     } $tags_array = array_values(array_unique($tags_array, sort_string)) ;  print_r($tags_array) ; /****** * * print_r show somethings array([1] => asp [2] => php [3] => php [4] => ruby [5] => jquery [6] => php [7] => asp_net [8] = >c# [9] => asp)  * * it's example show situation  *****/ ?>

make sure returned values in fact not unique. example

$foo = array("php","php","php","php "); $foo = array_unique($foo);

will still contain 4 entries.

if entries contain spaces should trim these.


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