PHP從數組中刪除重複項

Question

我對我的PHP數組有點問題。首先他們在這個數組中有數組，我試圖刪除重複項。我做了我陣列的print_r的，它打印出來這個....

Array (
    [0] => Array ([creditfeeid] => 318 [client] => Test 1 [adjustment] => 444.00 [issuedate] => 2012-02-10 20:27:00 [isrecurring] => No [comment] => 444 [commission] => 17.76) 
    [1] => Array ([creditfeeid] => 319 [client] => Test 1 [adjustment] => 333.00 [issuedate] => 2012-02-10 20:27:00 [isrecurring] => No [comment] => 333 [commission] => 9.99) 
    [2] => Array ([creditfeeid] => 320 [client] => Test 1 [adjustment] => 111.00 [issuedate] => 2012-02-10 20:27:00 [isrecurring] => No [comment] => 111 [commission] => 1.11) 
    [3] => Array ([creditfeeid] => 321 [client] => Test 1 [adjustment] => 222.00 [issuedate] => 2012-02-10 00:00:00 [isrecurring] => No [comment] => 111 [commission] => 2.22) 
    [4] => Array ([creditfeeid] => 292 [client] => Test 1 [adjustment] => 555.00 [issuedate] => 2012-01-25 13:04:43 [isrecurring] => Yes [comment] => 555 [commission] => 5.00) 
    [5] => Array ([creditfeeid] => 317 [client] => Test 2 [adjustment] => 666.00 [issuedate] => 2012-02-10 00:00:00 [isrecurring] => No [comment] => 666 [commission] => 39.96) 
) 

我試圖消除在重複的[「評論」]這是

我一直在與unique_array合作，似乎並沒有這樣做。這是我曾嘗試....

foreach($array as $row){ 
if(array_unique($row['comment'])){ 
    continue; 
}else{ 
    echo $row['comment'] . "<br/>"; 
} 
} 

也

$array = array_unique($array); 

foreach($array as $row){ 

     echo $row['comment'] . "<br/>"; 
} 

我在做什麼錯？ array_unique不是我問題的答案嗎？

由於提前，

Ĵ

Answer 1

array_unique不回答你的問題。相反，考慮這樣的事情：

$new_array = Array(); 
foreach($old_array as $a) { 
    if(!isset($new_array[$a['comment']])) 
     $new_array[$a['comment']] = $a; 
} 
$new_array = array_values($new_array);