我的下拉菜单有如下选项
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:不要看某个单词，排序的第一列应该是4M或10M…/号之前的值。之后应该继续排序第二列，512k或2M…但这取决于第二列中的值是否包含k个字符(这意味着kylobytes)应该放在第一位(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…
下面是示例
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)
您可以使用http://www.php.net/usort创建自己的排序方法来对包含您的下拉选项的数组进行排序。
这应该会给你一个好的开始:
<?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>";