PHP排序工作日和月年通过阵列的客户订单 [英] PHP sort weekday and month-year array by custom order

问题描述

我平日（见下文），我想排序为周一至周二，周三，周四，周五，周六，周日。

I have an array of weekdays (see below) that I would like to sort as "Mon-Tue-Wed-Thu-Fri-Sat-Sun".

"Sun"=>59
"Sat"=>41
"Fri"=>21
"Thu"=>11
"Wed"=>14
"Tue"=>19
"Mon"=>31

我尝试以下code，但它似乎没有正常工作，其结果是有序阵列上方粘贴的，即不是在我想它是命令。

I tried the following code but it doesn't seem to work correctly, the result being the ordered array pasted above, i.e. not in the order I would like it to be.

function orderbyweekday($a, $b) {

    if (strcmp($a, "Mon") == 0) 
        $a = 0;
    else if (strcmp($a, "Tue") == 0) 
        $a = 1;    
    else if (strcmp($a, "Wed") == 0) 
        $a = 2;
    else if (strcmp($a, "Thu") == 0) 
        $a = 3; 
    else if (strcmp($a, "Fri") == 0) 
        $a = 4;
    else if (strcmp($a, "Sat") == 0)  
        $a = 5;
    else if (strcmp($a, "Sun") == 0)   
        $a = 6;    

    if (strcmp($b, "Mon") == 0) 
        $b = 0;
    else if (strcmp($b, "Tue") == 0) 
        $b = 1;    
    else if (strcmp($b, "Wed") == 0) 
        $b = 2;
    else if (strcmp($b, "Thu") == 0) 
        $b = 3; 
    else if (strcmp($b, "Fri") == 0) 
        $b = 4;
    else if (strcmp($b, "Sat") == 0)  
        $b = 5;
    else if (strcmp($b, "Sun") == 0)   
        $b = 6;    

    // if same day, return 0
    if ($a == $b) {
        return 0;
    } 

    return ($a > $b) ? -1 : 1;
}

uksort($movies_per_day, "orderbyweekday");

我还要做类似的事情用一个月的年阵列（例如2010年6月=> 10，2009年5月=> 111等），但一旦我得到这个权利应该是更容易。

I would also like to do a similar thing with an array of month-years (e.g. "June 2010"=>10, "May 2009"=>111, etc.), but once I get this right it should be easier.

非常感谢。

推荐答案

您可以试试这个。

function weekdaySort($a, $b){
      $weekdays = array("Mon", "Tue","Wed","Thu","Fri", "Sat", "Sun");
      return array_search($a, $weekdays) - array_search($b, $weekdays);
} 

uksort($movies_per_day, "weekdaySort");

或者如果你正在使用PHP 5.3或以上，你可以使用一个封闭;

or if you are using php 5.3 or above you can use a closure;

$weekdays = array("Mon", "Tue","Wed","Thu","Fri", "Sat", "Sun");
uksort($movies_per_day, function($a, $b) use ($weekdays) {return array_search($a, $weekdays) - array_search($b, $weekdays);});

这将避免重现 $平日阵列，每个迭代。

This will avoid recreating the $weekdays array with each iteration.

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