如何从PHP值的数组，字符串特别排序？ [英] how to sort particular strings from an array of values in php?

问题描述

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

我想这个字符串数组如下排序时，应先进行排序的一年，那么它应该每月进行排序，

i want to sort this array strings as following, it should sort the year first, then it should sort the month,

所需的输出

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

我试过的东西，任何人都可以绑定我的功能进行排序，然后每年每月的http：// codepad.org/skEiUkTC

推荐答案

试试这个code：

<?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

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

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