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我的下拉菜单有这样的选项

something 4M/512k
something 10M/768k
something 4M/2M
something 10M/5M
something 10M/10M
something 20M/20M (FTTH)
something 60M/60M (FTTH)
something 100M/100M (FTTH)

现在排序应该是这样的：不要看something word，排序的第一列应该是4M或10M...... /符号之前的值。之后排序应该继续第二列512k或 2M ......但这取决于第二列中的值是否包含 k char（这意味着 kylobytes）应该是第一个（M 意味着兆字节）。第三列应该是 FTTH。例如，如果该行包含 (FTTH) 单词，它应该放在最后......

这是它应该是什么样子的例子

something 4M/512k
something 4M/2M
something 10M/768k
something 10M/5M
something 10M/10M
something 20M/20M (FTTH)
something 60M/60M (FTTH)
something 100M/100M (FTTH)
4

1 回答 1

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您可以使用http://www.php.net/usort创建自己的排序方法来对包含下拉选项的数组进行排序。

这应该让你有一个好的开始：

<?php
$data[] = "something 4M/512k";
$data[] = "something 10M/768k";
$data[] = "something 4M/2M";
$data[] = "something 10M/5M";
$data[] = "something 10M/10M";
$data[] = "something 20M/20M (FTTH)";
$data[] = "something 60M/60M (FTTH)";
$data[] = "something 100M/100M (FTTH)";

function mysort($a, $b){
  list($something, $a_speed) = explode(" ", $a);
  list($something, $b_speed) = explode(" ", $b);

  list($a_speed_part_1, $a_speed_part_2) = explode("/", $a_speed);
  list($b_speed_part_1, $b_speed_part_2) = explode("/", $b_speed);

  //TODO: add M/k comparison or calculation

  if(intval($a_speed_part_1) > intval($b_speed_part_1)){
    return 1;
  } elseif (intval($a_speed_part_1) < intval($b_speed_part_1)) {
    return -1;
  } else {
    if(intval($a_speed_part_2) > intval($b_speed_part_2)){
      return 1;
    } elseif (intval($a_speed_part_2) < intval($b_speed_part_2)) {
      return -1;
    } else {
      return 0;
    }
    return 0;
  }
}

usort($data, "mysort");
echo "<pre>";
print_r($data);
echo "</pre>";
于 2013-02-27T11:42:57.363 回答