按值排序多維數組

Question

我有以下數組。

Array (
     [0] => Array(
       [vendorid] => 36 
       [vendorname] => Nothin' But A Muffin 
       [vendorfriendlyname] => nothin-but-a-muffin 
     ) 
     [1] => Array(
       [vendorid] => 52 
       [vendorname] => Montalto Olive Grove 
       [vendorfriendlyname] => montalto-olive-grove 
     ) 
     [2] => Array(
       [vendorid] => 44 
       [vendorname] => Kuki Kids 
       [vendorfriendlyname] => kuki-kids 
     ) 
     [3] => Array(
       [vendorid] => 47 
       [vendorname] => pasApas 
       [vendorfriendlyname] => pasapas 
     ) 
     [4] => Array(
       [vendorid] => 89 
       [vendorname] => Organic Family 
       [vendorfriendlyname] => organic-family 
     ) 
    ) 

我需要上述陣列trasform分爲以下

Array (
     [0] => Array(
       [vendorid] => 44 
       [vendorname] => Kuki Kids 
       [vendorfriendlyname] => kuki-kids 
     ) 
     [1] => Array(
       [vendorid] => 52 
       [vendorname] => Montalto Olive Grove 
       [vendorfriendlyname] => montalto-olive-grove 
     ) 
     [2] => Array(
       [vendorid] => 36 
       [vendorname] => Nothin' But A Muffin 
       [vendorfriendlyname] => nothin-but-a-muffin 
     ) 
     [3] => Array(
       [vendorid] => 89 
       [vendorname] => Organic Family 
       [vendorfriendlyname] => organic-family 
     ) 
     [4] => Array(
       [vendorid] => 47 
       [vendorname] => pasApas 
       [vendorfriendlyname] => pasapas 
     ) 

    ) 

我已經用在array_multisort（），但它沒有工作

是否有可能進行排序？

Answer 1

試試這個：假設你有$排陣

function cmp($a, $b) 
{ 
    return strcmp($a["vendorname"], $b["vendorname"]); 
} 

$array = $rows; 
usort($array, "cmp"); 

while (list($key, $value) = each($array)) { 
    $new[] =$value ; 
} 
echo "<pre>"; 
print_r($new); 

Answer 2

usort像：

function compare($a, $b) 
    {   
     return strcmp($a['vendorname'], $b['vendorname']); 
    } 
    usort($array, "compare"); 

Answer 3

雖然作爲一個評論指出，在這種情況下，最有效的方法是排序中數據庫查詢，下面是一個例子，說明如何使用array_multisort，這比usort更有效：

$rows = $vendors = array(); 
while ($row = mysql_fetch_assoc($res)) { 
    $vendors[] = $row['vendorname']; 
    $rows[] = $row; 
} 
array_multisort($rows, $vendors, SORT_ASC);