$array = array("2011-September_38","2011-June_4","2010-November_9","2011-November_29","2010-December_19");

我想按以下方式对此数组字符串进行排序,应该首先对年份进行排序,然后对月份进行排序,

期望的输出

Array ( [0] => 2010-Marh_19 
        [1] => 2010-November_9 
        [2] => 2011-June_4 
        [3] => 2011-September_38
        [4] => 2011-November_29 )

我尝试了一些方法,有人可以将我的功能绑定到年份然后月份http://codepad.org/skEiUkTC

解决方法:

试试这个代码：

<?php
$array = array("2011-September_38","2011-June_4","2010-November_9","2011-November_29","2010-December_19");
function monthCompare($a, $b) {
   $da = strtotime(strstr($a, '_', true));
   $db = strtotime(strstr($b, '_', true));
   return $da > $db;
}
usort($array, "monthCompare");
print_r($array);
?>

输出值

Array
(
    [0] => 2010-November_9
    [1] => 2010-December_19
    [2] => 2011-June_4
    [3] => 2011-September_38
    [4] => 2011-November_29
)