Question

如何从数组中获取过滤的字母数字值，例如范围之间的字母数字值。

$array1 = array("F6B10471", "A6A10471", "B6C10471", "D6A10471");

这是我的数组我将把 A6A10471 之间的范围传递给 D6A10471 我的预期结果为Array([0] => A6A10471[1] => B6C10471[2] => D6A10471)

Answer 1

您可以使用base_convert来完成此操作。将基数从36转换为10并按此检查

<?php
    $arr = array("F6B10471", "A6A10471", "B6C10471", "D6A10471");
    $start = base_convert("A6A10471",36,10);
    $end = base_convert("D6A10471",36,10);
    $new = array();
    foreach($arr as $val){
      $value = base_convert($val,36,10);
      if($value >= $start && $value <= $end ){
        $new[] = $val;    
      }
    }
    print_r($new);
?>

现场演示：https://eval.in/865289

输出：

Array
(
    [0] => A6A10471
    [1] => B6C10471
    [2] => D6A10471
)

Answer 2

将array_filter()与过滤器类一起使用的示例，如果要实现Strategy Design Pattern

，可以轻松更新

<?php
class FilterBetween
{
    private $start;
    private $end;

    public function __construct($start, $end)
    {
        $this->start = $start;
        $this->end = $end;
    }

    public function filter($value)
    {
        $result = false;
        if ($value >= $this->start && $value <= $this->end) {
            $result = true;
        }
        return $result;
    }
}


$arr = array("F6B10471", "A6A10471", "B6C10471", "D6A10471");

$objFilterBetween = new FilterBetween('A6A10471', 'D6A10471');
$arrResult = array_filter($arr, [$objFilterBetween, 'filter']);

var_dump($arrResult);

从数组中获取过滤的字母数字值，例如范围之间的字母数字值

2 个答案: