Question

我有一个名为“$ myarray”的数组，如下所示：

[0] => Array
    (
        [PrinterID] => 4
        [PrinterName] => PRT04_GL
        [UserID] => 1
        [isDefaultPrinter] => 0
        [isMapped] => 0
    )

[1] => Array
    (
        [PrinterID] => 1
        [PrinterName] => PRT01_Zentral
        [UserID] => 
        [isDefaultPrinter] => 0
        [isMapped] => 0
    )

[2] => Array
    (
        [PrinterID] => 2
        [PrinterName] => PRT02_BH
        [UserID] => 
        [isDefaultPrinter] => 0
        [isMapped] => 0
    )

[3] => Array
    (
        [PrinterID] => 3
        [PrinterName] => PRT03_EDV
        [UserID] => 
        [isDefaultPrinter] => 0
        [isMapped] => 1
    )

我想按[“PrinterName”]对数据进行排序。想要的结果将是：

[0] => Array
    (
        [PrinterID] => 1
        [PrinterName] => PRT01_Zentral
        [UserID] => 
        [isDefaultPrinter] => 0
        [isMapped] => 0
    )

[1] => Array
    (
        [PrinterID] => 2
        [PrinterName] => PRT02_BH
        [UserID] => 
        [isDefaultPrinter] => 0
        [isMapped] => 0
    )

[2] => Array
    (
        [PrinterID] => 3
        [PrinterName] => PRT03_EDV
        [UserID] => 
        [isDefaultPrinter] => 0
        [isMapped] => 1
    )

[3] => Array
    (
        [PrinterID] => 4
        [PrinterName] => PRT04_GL
        [UserID] => 1
        [isDefaultPrinter] => 0
        [isMapped] => 0
    )

根据this示例，我尝试了以下内容：

uasort($myarray, 'sort_by_order');
function sort_by_order ($a, $b) {
  return $a['PrinterName'] - $b['PrinterName'];
}

这不起作用。我收到的错误如“遇到非数字值...”，当然因为我的值是字符串而且函数是数值。

如何对数组进行排序？

谢谢！

修改我想我确实找到了解决方案here。我用过这个似乎有效：

uasort($myarray, 'sort_by_order');
function sort_by_order ( $a, $b ) { return strcmp($a['PrinterName'], $b['PrinterName']); }

Answer 1

请尝试使用$ a ['PrinterName']＆gt; $ B [ '的PrinterName']

它将比较值

PHP - 按字符串排序多维数组

1 个答案: